Good morning and welcome to Sports Mole's live commentary from day nine of the 126th Wimbledon Championships in London.
Rain again threatened to play havoc with the men's fourth-round fixtures, but all matches were finally completed on day eight.
British hope Andy Murray comfortably defeated Croatian Marin Cilic to book his spot in the quarter-finals. Meanwhile, Jo Wilfred-Tsonga overcame a troublesome back to record a three-sets-to-one win over the tough American Mardy Fish.
David Ferrer and Phillip Kohlschreiber also advanced. Meanwhile, the women's semi-final lineup was completed with Serena Williams, Victoria Azarenka, Angelique Kerber and Agnieszka Radwanska all advancing.
Today is men's quarter-final day – with Roger Federer, Andy Murray and Novak Djokovic all in action.
19.46Right, that's all from us today. We hope you've enjoyed our coverage of events from SW19 and hope that you can join us tomorrow for the women's semi-finals day. Angelique Kerber and Agniezska Radwanska are first up before Serena Williams and Victoria Azarenka slog it out. It's sure to be another fantastic day and hope you can be there with us to follow it. Thank you and goodnight!
19.43More from Murray: 'It was so close. If I lost that fourth set it was going to be a very tough fight.
On facing Jo-Wilfried Tsonga in the semis: '[It will be] a tough match. He's serving very well. I'll have to play very well to win that one.'
19.41Murray: 'It was a very tough match, a long match. There were some tense moments.
'I just played a little bit better in the end. [Ferrer's] a great player and he doesn't get enough respect, personally.'
19.39He's done it! The British number four seed reaches the semi-finals of Wimbledon for the fourth consecutive year as a powerful ace finally sees off Ferrer. Murray dug very deep there and will take so much out of this triumph. Meanwhile you have to feel sorry for Ferrer who was appearing in the quarter-finals at SW19 for the first time in his career. As expected he fought hard and pushed his opponent all the way but it ultimately wasn't enough.
19.37GAME, SET AND MATCH! Ferrer 7-6[5] 6-7[6] 4-6 6-7[4] Murray
19.36Murray brings up two match points...
19.34Murray now leads 4-2 as Ferrer shoots wide.
19.34But an ace pulls it back to 3-3 before another one puts him 4-3 ahead.
19.32Murray fires long and he's down 2-3.
19.32A sensational backhand winner from Ferrer makes it 2-2. Quite brilliant.
19.31Murray leads 2-1...
19.30First blood to the Brit as he gets the mini-break with a lethal backhand.
19.29A clinical service game from Murray as he holds to take this into a tie-break, a tie-break that Ferrer has to win to stay in the Championships.
19.26It's a good start to this second session for the Spaniard who holds. Murray will now serve to stay in the set. Instant tension on Centre Court.
19.23Here we go then, Ferrer to serve...
19.21The two men are going to have a brief warm-up before getting back underway. Murray currently leads by two sets to one but it 5-5 in the fourth. When they do start it'll be Ferrer to serve.
19.19The players are coming back out...
19.16Another reminder of what's in store tomorrow: It's women's semi-finals day which sees Angelique Kerber take on Agniezska Radwanska and Serena Williams face Victoria Azarenka. Both of those matches certainly offer their own styles with the first focused on technique and the second based on raw power.
19.11This gives us a good chance to remind you of the other quarter-final results today. Defending champions Novak Djokovic breezed past Florain Mayer and will now face Roger Federer in the last four after the six-time winner saw off Mikhail Youzhny in straight sets. Elsewhere, Jo-Wilfried Tsonga beat Philipp Kohlschreiber in four sets and will take on Andy Murray or David Ferrer in the semis. Rafael Nadal aside, the big guns are still very much in there.
19.08The rain does seem to have stopped now which means the players should be back out shortly. That said, this is Wimbledon and nothing is certain.
19.06Both of these players are also looking to have the upper hand in terms of their head-to-head meetings. It's currently 5-5 with Ferrer winning their last encounter in the quarter-finals of the French Open.
19.03Just to recap: Andy Murray currently leads David Ferrer by two sets to one. The two men are locked at 5-5 in the fourth having played three hours and 38 minutes of tennis.
19.01By the sounds of it the roof is not going to be used. A light shower it looks to be.
19.00Here we go, the covers are coming on. I guess the next question is whether it's a passing shower or if they need to deploy the roof.
18.59It looks like discussions are being had with regards to the weather. The umbrellas have gone up but it's unclear if the players are staying put.
18.58A real statement of intent from Murray there as he holds to love, his final point a delightful backhand right into the corner. It's 5-5.
18.55Ferrer holds what is surely one of the games of the match so far. First he brings up the advantage with an incredible forehand before sealing the game with a smash. This guy just keeps going and going.
18.51Nearly! Oh so very nearly! Murray hits a forehand down the line but it's inches too long and we're at deuce. Ferrer fighting superbly here.
18.50Ferrer saves one thanks to a Murray error.
18.49Oh my! Murray hits a wonderful backhand across court and now has two break points...
18.46And Murray holds as Ferrer fires long. It looked dicey for the world number four there but he scrapped hard to hold. It's now 4-4.
18.45...but Murray saves both of them with a couple of points at the net.
18.44A brilliant rally ends with Murray hitting the net AGAIN and it brings up two break point for Ferrer...
18.43The great Andre Agassi raises an eyebrow in the royal box as Murray hits the net twice. It's 15-30 on his serve...
18.41Murray still has a horrible habit of getting the simple shots wrong. Will it cost him this fourth set?
18.40Just as I type that Ferrer digs in to hold Murray off. The Spaniard leads 4-3.
18.38That's mightily impressive from Murray to hold again to love. You just get the feeling that he's going to pounce soon for what would be a vital break.
18.35A couple of errors from Murray hands Ferrer a hold of serve. It's now 2-2 and only getting more tense. How are your fingernails?
18.32Both men are still full of energy out there and looking as if they'll give nothing away as Murray hits an ace to hold serve.
18.29Murray puts his shot into the net and Ferrer holds to lead 2-1. The groundstaff have been seen lurking on the sidelines of Centre Court...
18.28There's light rain falling now at SW19. The players are still out there for the moment...
18.26Meanwhile, Ferrer is still hanging in there but Murray holds to make it 1-1 on Centre Court.
18.24Jo-Wilfried Tsonga is through to the semi-finals after a four-set victory over Germany's Philipp Kohlschreiber. The French fifth seed will play either Murray or Ferrer in the last four.
18.22GAME, SET AND MATCH! Tsonga 7-6[5] 4-6 7-6[3] 6-2 Kohlschreiber
18.21It's a solid start from Ferrer in this fourth set as he holds to go 1-0 in front.
18.18No doubting Murray there as he fires his 12th ace of the match to take the set. That was hugely impressive from the Brit. That said, Ferrer is sure to put up a fight for the remainder of the contest.
18.16SET! Ferrer 7-6[5] 6-7[6] 4-6 Murray
18.14And he takes it! Ferrer can't keep the return in and the fourth seed leads 5-4. He'll now serve for the set.
18.13Murray slams a huge forehand winner across court to bring up a break point...
18.13It's at deuce on the Ferrer serve...
18.09Murray keeps the pressure up and holds serve.
18.07As is so often the case, Murray slips on the grass but Ferrer puts his lob too long and it's 15-0.
18.05Not much to work with for Murray there as a determined Ferrer also holds to love. The Spaniard leads 4-3.
18.02The Brit shows a wide range of shots in that service game to hold to love and bring this one to 3-3.
18.00Okay then, it's been some battle so far, hasn't it? Murray to serve at 2-3 in this third set.
17.59Right, that's me for today. I shall hand you over to my colleague Jack Prescott for the remainder of Ferrer vs. Murray. You won't want to miss it!
17.58Meanwhile, Ferrer answers straight back with a strong hold of his own to move 3-2 ahead in the third set.
17.58SET! Tsonga claims the third-set tie-break against Kohlschreiber to move two-sets-to-one ahead.
17.56Ace number 11 from Murray moves the Scot advantage ahead - and he secures the hold with Ferrer finding the net once more.
17.54... but Murray fires a powerful forehand to level it at 40-40.
17.54Murray saves the first as Ferrer hits the net from close range. However, he has another...
17.52Meanwhile, it's sloppy from Murray as he double faults to hand Ferrer two break points.
17.52Indeed it has entered a tie-break.
17.50Ferrer holds to move 2-1 ahead in the third set. Meanwhile, Tsonga and Kohlscreiber appears to be heading for a tie-break in the third.
17.48Brilliant drop shot from Murray as he moves 30-15 behind Ferrer. However, an overhead smash from the Spaniard secures a 40-15 lead.
17.46Just a couple of errors creeping into Ferrer's game as Murray holds to level it at 1-1.
17.44Ferrer holds to take a 1-0 lead in the third. You just know that this one is heading for five.
17.42Murray misses the chance to take a 0-30 lead in the opening game of the third as he hits the net from close range. The long rallies between these two are back.
17.40Meanwhile, Tsonga and Kohlschreiber remains on serve at 4-5 in the third.
17.40What a wonderful match we have had thus far. This is what Wimbledon is all about. Just brilliant.
17.38...SET! Murray takes it! The Scot wins the tie-break 8-6 to level the match at one-set-all.
17.36It's Murray with another powerful serve as he moves 6-7 ahead. The Scot has set point...
17.36Murray hits a thumping serve of his own to move level at 6-6 in the breaker. He has one serve remaining.
17.34However, a powerful serve from Ferrer sends the Spaniard back into the lead.
17.34Murray levels at 5-5 as Ferrer hits the net!
17.32He takes the first with a powerful forehand - and the second with an ace. 5-4 Ferrer.
17.32Simply too good from Ferrer as he moves 5-2 ahead. Murray must win the next two on serve.
17.30However, the Scot then fires wide to hand Ferrer a 4-2 lead.
17.30An ace gets Murray back into it at 1-3 - before a delicate drop shot makes it 3-2.
17.28Make that 3-0 as Murray hits the net once more. The Scot has to recover here.
17.28And it's quickly 2-0 as Murray fires long.
17.28Brilliant from Ferrer as he places a forehand past Murray to take a 1-0 lead in the tie-break.
17.26Murray hits the net! It's poor from the Scot as he drops it just too short - before hitting the net. We head for another tie-break.
17.24What do we have here? Ferrer fires just wide and we sit level at 30-30 on the Spaniard's serve.
17.24Meanwhile, Tsonga and Kohlschreiber remains on serve at 3-3 in the second set.
17.22Murray does hold! Game on! The Scot leads 5-6 in the second set.
17.22Ferrer then just fires wide to hand Murray a 40-15 lead on serve.
17.20Just wonderful! Best moment in this match for Murray as he somehow reaches a Ferrer strike on the forehand side to thump it past the Spaniard.
17.18And he does! Brilliant from Murray as he levels it at 5-5. A couple of errors from Ferrer in that one.
17.16And again! Murray has two chances to get this one back on serve in the second set.
17.16Ferrer fires wide! 15-30.
17.16It's better from Murray as he levels it at 15-15 with a powerful forehand. He simply must break here.
17.14And this time he takes it! Ferrer will serve for a two-sets-to-nil lead against Murray. What a big moment in this match.
17.14Ferrer continues to probe and draw error after error out of Murray. He has another break point.
17.12... Murray saves it! Wonderful from the Scot as he thumps a forehand onto the deuce court.
17.12However, he then fires a forehand wide to hand Ferrer break point...
17.10Just when he needs it - Murray hits his eighth ace of the match. 30-30.
17.08Murray hits a tired backhand as Ferrer levels it at 15-15. Surely the Scot cannot go two-sets-to-nil down?
17.06Just a reminder that Djokovic and Federer will clash in the semi-finals following their respective wins earlier. Meanwhile, the winner of this one will face Tsonga or Kohlscreiber.
17.04However, the little Spaniard holds on to level it at 4-4 in the second set. Who will blink first in this one?
17.02Ferrer continues to impress on serve as he moves 30-0 ahead. However, two points from Murray levels it at 30-30.
17.00Meanwhile, three straight points for Murray keeps this one on serve at 3-4 in the second.
16.59SET! Kohlscreiber claims the second set 6-4 against Tsonga to level it at one-set-all.
16.59Wow. Murray fires straight into the net from close range to hand Ferrer another break point.
16.57And he saves the second with his seventh ace of the match. Big moment in this match. Deuce.
16.57Brilliant from Murray as he staves off the first of two break points at the net.
16.55Murray finally moves to the net at 0-30 down to cut the score to 15-30. Meanwhile, blue sky is above us!
16.53The Scot continues to remain reluctant to move to the net as Ferrer levels the match at 3-3.
16.51It's Ferrer who continues to dominate at the net - why hasn't Murray adopted the same tactic?
16.49The Scot closes the game out as Ferrer fires wide. We remain on serve at 2-3 in the second.
16.47The rallies are just starting to get shorter in this set with both players controlling their serve. Murray leads 30-0.
16.45Ferrer does indeed hold to level it at 2-2. Meanwhile, Tsonga has broken back against Kohlscreiber in the second set.
16.43Both players are excelling on their serves at the moment. Could we be heading for another tie-break in the second? Ferrer leads 30-15.
16.41Quick hold for Murray as he moves 2-1 ahead. Meanwhile, Kohlscreiber leads Tsonga 4-2 in the second set.
16.39The Spaniard secures the hold as Murray can only find the net once more. 1-1 in the second.
16.39But again it's beautiful imagination from Ferrer as he plays short before putting the volley away at the net.
16.37However, three straight points for Murray hands him the chance to break.
16.37That's more like it as he comes to the end to volley a forehand past Ferrer. However, the Spaniard has two game points.
16.35Murray continues to hit unforced errors in the early stages of this one. His returns just have not been up to his usual standard.
16.33Murray holds in the opening game of the second set. Meanwhile, the sun has finally joined us!
16.31So here we go in the second set. Meanwhile, Kohlschreiber has broken Tsonga to lead 2-0 in the second set.
16.29SET! Ferrer claims the opening set 7-6 against Murray.
16.28Murray levels it at 5-5 with a powerful serve - but he hits the net to hand Ferrer set point on serve.
16.28Wide from Ferrer! 4-5 on the Murray serve.
16.26Big moment in this tie-break as Murray hits the net to trail 5-3.
16.25Murray stops the run with a dart to the net - and Ferrer cannot return his forehand. 4-3 Ferrer.
16.23Another line-ball from Ferrer as he takes his fourth straight point.
16.23Meanwhile, it's a brilliant passing shot from Ferrer as he moves 3-2 ahead.
16.21SET! Tsonga claims the opening set 7-6 against Kohlschreiber.
16.21Murray moves 2-0 ahead as Ferrer hits the net - but a passing shot from the Spaniard cuts the score to 1-2.
16.19First point goes to Murray as Ferrer fires long. Unusual from the Spaniard.
16.19Indeed Murray does take it to a tie-break with a hold to love. 6-6 in the opening set.
16.17Ferrer recovers from 0-30 down to hold serve and move 6-5 ahead. Murray will serve to take this one into a tie-break.
16.15However, twice in a row he rattles it straight into the net. Meanwhile, Tsonga and Kohlschreiber has entered a tie-break in the opening set.
16.13Oh what do we have here? Brilliant hitting from Murray as he moves 0-30 ahead.
16.11Murray secures his third game in a row to level it at 5-5. What a tough opening set this has been for both players.
16.09Again it's impressive serving from Murray as he moves 40-15 ahead. The Scot is just starting to take control of this one.
16.07Meanwhile, Tsonga and Kohlschreiber remains on serve at 5-5 in the opener.
16.05Murray breaks! Fantastic from the world number four as he fires a forehand past Ferrer. He moves this one back on serve at 4-5.
16.03However, three points in a row for Murray hands the Scot break point - before Ferrer levels it at deuce with a well-placed forehand.
16.02An ace from Ferrer levels it at 30-30 - before a powerful forehand hands him two set points.
16.01However, the Scot just isn't taking advantage of the Ferrer second serve.
16.00Great start from Murray as Ferrer fires long in the opening exchange.
15.58Nevertheless, Murray does secure the hold to move 5-3 behind Ferrer. However, the latter will now serve for the opening set.
15.56However, there are simply no easy points against Ferrer. There seems to be about 10 of him on the court.
15.54Powerful serving from Murray as he moves into a 30-0 lead. He simply must ask the question of Ferrer on serve.
15.52Ferrer holds to lead 5-2 in the opening set as Murray hits the net from close range. Really has been a high-quality match thus far.
15.50Again it's a wonderful exchange as Ferrer drops a delicate shot just over the net. He leads 30-15 on serve.
15.48And he does with a thumping forehand. 4-2 Ferrer in the opening set.
15.48Ferrer returns just wide at 15-30 to hand Murray two chances to hold serve.
15.46Best rally of the match between these two as Ferrer finds a forehand from nowhere just inside the corner. Top-draw tennis on display in the early stages.
15.46Ferrer secures the hold as Murray hits the net twice in a row. Too many errors from the Scot thus far.
15.44Fantastic speed from Murray as he reaches a Ferrer drop shot before finding a delicate volley at the net. Deuce.
15.42Ferrer just seems to be moving so much better than Murray in the early stages of this one. We sit level at 30-30 on the Spaniard's serve.
15.42Meanwhile, Tsonga vs. Kohlschreiber remains on serve in the opening stages thus far.
15.40Break Ferrer! Murray can only hit the net as he hands Ferrer a 3-1 lead in the opening set.
15.38Wow! Ferrer levels it at 30-30 with a fine passing shot at the net. The little Spaniard just makes every ball.
15.36Powerful ace from Murray as he levels it at 15-15 on serve, before Ferrer hits the net.
15.34Meanwhile, Tsonga and Kohlschreiber is also underway.
15.32Murray waves his arms as laughter erupts in the crowd following his grunting. He is not happy as Ferrer holds to lead 2-1.
15.32Another error from Ferrer hands Murray two break points. However, the Scot hits the first into the net before an ace from Ferrer.
15.30It's rash from Ferrer as he hits an easy volley wide. Murray leads 0-30.
15.30Meanwhile, here's a word from Djokovic following his win: "The start of the match was quite even, and we split breaks up to the rain delay. It took me a while to get used to the conditions, having played my last three games indoors. It was a little windy, but I'm satisfied with the overall performance. Florian had some oppotunities to come back in the third set, as well as chances in the first, but I held my nerve at the important moments. I came back after the rain delay and lost five or six points in a row, so I don't know whether it helped. It took a while but I found the rhythm. It's always a pleasure playing against Roger, so I'm looking forward to that. He's been so dominant and consistent in Grand Slams, it's the ultimate challenge on a grass court," he told the BBC.
15.28Murray holds as Ferrer fires wide - but boy did he have to work for it. 1-1 in the opening set.
15.26However, Murray staves off the threat with an ace, before Ferrer fires wide. Deuce in the second game of the opening set.
15.26Fantastic running from Ferrer in the early stages. He has begun how he ended against Juan Martin Del Potro - and he has two break points.
15.24It's better from Murray as he finally gets on the points board with a powerful forehand. 15-15 on the Scot's serve.
15.24Meanwhile, Tsonga and Kohlschreiber will also soon get underway.
15.22The Spaniard claims the opening game of the match to love with a wonderful slice at the net.
15.20Bright start from Ferrer as he claims the opening point of the match with a powerful forehand.
15.18Meanwhile, here we go then. Ferrer vs. Murray is underway.
15.16There we have it. Djokovic does indeed close out the win to set up a semi-final clash with Federer - what a match that will be.
15.16RESULT: Djokovic 6-4 6-1 6-4 Mayer
15.14Mayer just will not go away in what could be the final game against Djokovic. The pair sit at deuce once more.
15.12Meanwhile, Murray and Ferrer have just emerged on Centre Court.
15.12... but he cannot take it as he fires long. Deuce.
15.12What do we have here? Break point Mayer...
15.10Djokovic takes a 15-0 lead on serve. However, the Serbian hits the net to allow Mayer back in at 15-15.
15.08Scrap that - Djokovic has broken Mayer at 4-4. The Serbian will now serve for a spot in the semi-finals.
15.06Meanwhile, Djokovic and Mayer remains on serve at 4-4 in the third set.
15.04So there we have it. Federer books his spot in the semi-final with an extremely comfortable win over Youzhny. The score tells you everything you need to know about the one-sided affair. We have Ferrer and Murray to come next on Centre.
15.02RESULT: Federer 6-1 6-2 6-1 Youzhny
15.00Youznhy holds! Fantastic character from the Russian. However, Federer will serve for the match.
14.58Youzhny staves off three match points for Federer to level it at deuce. Can he hold?
14.56There's the hold for Federer as he whips a forehand past Youzhny. The Russian will serve to stay in the match.
14.54Somehow Federer wins the point despite being on the defensive for large periods. The Swiss can do no wrong in this one.
14.52Youzhny double faults to hand Federer a 4-1 lead in the third. That's just about that for this one.
14.50... however, Federer fires wide as we sit at deuce.
14.48Just too good from Federer as he comes to the net to release a powerful forehand onto the line. Break point...
14.48Meanwhile, Djokovic and Mayer remains on serve at 1-2 in the third set.
14.46Youzhny does miss the chance. Federer holds to lead 3-1 in the third. The Swiss is just three games from the win.
14.44And then the Russian fires long. He may have just missed his chance.
14.44An ace saves the first as Youzhny lets out a cry of emotions.
14.44What do we have here? Federer fires long to hand Youzhny two chances to break at 2-1.
14.42Remember, Andy Murray and David Ferrer will follow this match on Centre. And Federer is wasting no time.
14.40Youzhny gets on the board in the third set with a love service game as he moves 2-1 behind Federer.
14.38An ace from Federer sends the Swiss into a 2-0 lead in the third. Djokovic and Federer are not hanging around today.
14.38SET! Djokovic does indeed serve it out to take the second set 6-1. He also leads two-sets-to-nil.
14.36Meanwhile, Djokovic has broken Mayer once more and will serve for the second set.
14.34Youzhny asks the Royal box for advice as he loses serve once more. This one is as good as over already!
14.33Federer just isn't missing with that forehand as he levels it at 40-40 in the opening game of the third.
14.31Wow! Shot of the match for Youzhny as he dips a top-spin winner over the head of Federer. He certainly enjoyed that one.
14.30Meanwhile, Djokovic has broken Mayer to lead 3-1 on serve in the second set.
14.28SET! Wonderful tennis from Federer as he claims the second set 6-2. He leads two-sets-to-nil after just 56 minutes.
14.26Just sensational hitting from Federer as he moves to within two points of the second set.
14.26But he takes the third! Federer breaks to lead 5-2 and he now will now serve for a two-set lead.
14.24Federer sets up three chances for the double break. However, he fires the first wide.
14.24It's all going wrong for Youzhny as Federer takes a 0-30 lead on the Russian's serve.
14.22Brilliant serving from Federer once more as he takes a 4-2 lead in the second set. Meanwhile, Djokovic and Mayer are level at 1-1 in the second.
14.20Here's a word from former Wimbledon champion Pat Cash: "Federer's in full flow. He's smooth, he's moving fast and there's lots and lots of power," he told the BBC.
14.18Meanwhile, Youzhny does hold to keep in touch with the Swiss at 3-2.
14.16Just too many simple errors from Youzhny in this match thus far. We sit at 30-30 on the Russian's serve.
14.14Brilliant serving from Federer as he recovers from 15-30 down to take a 3-1 lead in the second set.
14.12Here's a word from former world number one Boris Becker on the opening set for Djokovic: "Djokovic is in the game now. I don't think he took Mayer too seriously to start with, but being three break points down at 4-4 made him realise he might just lose the first set. Djokovic is being a bit more business-like," he told the BBC.
14.10...SET! Djokovic claims the opening set 6-4 against Mayer.
14.10It's better from Youzhny as he holds serve to move 1-2 behind Federer. Meanwhile, Djokovic has set point against Mayer...
14.08There's the hold for Federer as he moves 2-0 ahead. How does Youzhny get back into this one? Meanwhile, Djokovic and Mayer remains on serve at 5-4.
14.06Youzhny has just started to pick up the pace - but a wild forehand goes wide to hand Federer a 30-15 lead.
14.04Break Federer! The Swiss breaks straight away in the second set. It's all just been too easy thus far.
14.04Meanwhile, Djokovic has recovered from 0-40 down to tie it at deuce with Mayer.
14.04Youzhny just cannot match the groundstokes of Federer thus far. The Russian is down 0-30 on serve in the opening game of the second set.
14.02Meanwhile, Djokovic is down 0-30 on his own serve against Mayer.
14.00SET! Federer claims the opening set 6-1 after just 27 minutes. Brilliant from the six-time champion.
14.00Best shot of the match from Youzhny as he levels it at 30-30 with a wonderful passing shot at the net. He enjoyed that one!
13.58Federer breaks! Big moment in this match as the Swiss takes a 5-1 lead. He will serve for the opening set.
13.56Here we go then. Both players are back on Centre and we are ready to resume.
13.54Update: The covers are being taken off both courts.
13.52He has also taken just three sets off Federer in their 13 matches on tour. Bit of a mis-match on paper.
13.50Will the break of play favour Youzhny? He has simply been blown away in the opening set thus far.
13.48Meanwhile, they are still playing out on Court Three in the doubles. A bit of rain never hurt anyone right?
13.46The last time I checked it was July? Where is this British scorching summer we were promised? I'm not expecting Mexico - but a dry spell would be nice.
13.44BBC are just running the highlights of the Djokovic match thus far. Mayer has been really impressive in the opener.
13.42Why was the roof not put on before I hear you ask? Federer has made the point that this is an 'outside tournament' and therefore should be open to the elements.
13.40It is understood that a decision will soon be made as to whether the roof is to be put over Centre. That takes around 30 minutes.
13.38As it stands - Federer leads 4-1 and 30-40 on the Youzhny serve. Meanwhile, Djokovic leads Mayer 4-3 in the opener.
13.36Here comes the rain as expected. Oh the elements!
13.36PLAY SUSPENDED ON CENTRE COURT AND COURT ONE.
13.36Just delightful from Federer as he produces a delicate drop shot to set up two break points.
13.34Youzhny hits the net to hand Federer a 15-30 lead. The Russian just cannot miss shots like that.
13.34Weather update: Simple one this time. It is raining.
13.32BBC have just spotted England football boss Roy Hodgson in the crowd. He seems to be enjoying his day on Centre.
13.32Another quick hold for Federer as he storms into a 4-1 lead in the opening set.
13.30Meanwhile, Djokovic has broken straight back against Mayer. No surprise there!
13.30However, Youznhy does get himself on the board with a solid enough hold. Federer leads 3-1 in the opening set.
13.28Stunning backhand from Federer as he moves 0-15 ahead. Youzhny must hold here.
13.26What do we have here? Mayer has broken Djokovic to lead 3-2 in the opening set!
13.26Federer just looks a class above at the moment as he holds his serve with ease. The highlight being a wonderful drop shot at 15-0.
13.24Meanwhile, Djokovic and Mayer remains on serve at 2-2 in the first.
13.22Federer finally breaks at the fifth time of asking to move 2-0 ahead in the opening set.
13.21It appears that neither player wants to win this second game. It has gone on for 10 minutes.
13.19Again the pair exchange points as we sit level. Meanwhile, Djokovic has moved 2-1 ahead of Mayer.
13.17Federer passes up the chance to break as he fires long. We remain at 40-40 once more. Youzhny just has to get off to a good start here.
13.16A 40-0 lead for Youzhny vanishes as we sit at deuce.
13.16Wonderful from Federer as he whips a forehand right onto the line to move 30-40 behind. Just brilliant.
13.14Meanwhile, Mayer has levelled it at 1-1 in the opening set against Djokovic.
13.14Nice bright start on Youzhny's serve as he comes to the net to move 30-0 ahead.
13.12Federer joins him in a flash as he holds his opening serve in less than a minute.
13.12Meanwhile, Djokovic and Mayer are also underway - and the Serbian has held to love in the opening game.
13.10Here we go then. We are underway on Centre. Although, it is understood that rain is on the way.
13.08What about the rise of the Germans this year? We had four of them in the last eight of a Grand Slam for the first time - including the women.
13.06The roof remains open on Centre. However, I would not be surprised to see it closed at some point.
13.04Federer wins the toss - and it is understood that Youzhny will serve first.
13.02The Duke and Duchess of Cambridge - Kate and William have joined us on Centre. Meanwhile, the players are also emerging onto the court.
13.00Weather update: A few drops of rain have begun to fall. NO!
12.58Meanwhile, Tsonga has his Ipod out as he prepares for his match. It appears that he could be listening to the Backstreet Boys.
12.56Henman Hill/Murray Mound is also filling up nicely ahead of the action.
12.54Meanwhile, everything has been prepared on Centre. The air-conditioning is on full-blast. It is almost time!
12.52My prediction for the final four? Federer, Murray, Djokovic and Tsonga. Four of the top six players in the world.
12.50If the Scot reaches the final - he will become the first British man to do so since Bunny Austin in 1938.
12.48Rafael Nadal, Juan Martin Del Potro, Andy Roddick and the rest have all fallen. And now just eight remain. Could it be Murray's year?
12.46Just a reminder that Federer vs. Youzhny and Djokovic vs. Mayer will begin at 1pm. Meanwhile, Ferrer vs. Murray and Tsonga vs. Kohlschreiber will follow.
12.44The pair met in a warm-up event for Wimbledon in Germany. Federer claimed a 6-1 6-4 victory with ease. However, today is another day.
12.42However, he is up against a man who has been dubbed the 'greatest'. Federer has just the six Wimbledon titles to his name - in addition to four Australian Open titles, one French and five US Open's. Not too bad I suppose.
12.40He also made the semi-finals of the US Open in 2010. Therefore, he is no stranger to the big stage.
12.38The Russian is currently ranked number 33 in the world - although he was inside the top 10 in 2008. He is playing in his first Wimbledon quarter-final today. However, he has reached the quarters of the Australian and the French.
12.36We are just about 25 minutes away from play on Centre. So what of Ferrer's opponent Youzhny?
12.34Murray's serve - far from the best on the tour - is also stronger than Ferrer's. One thing is for certain, neither player will let this one go without a fight.
12.32Ferrer has also won 94% of his service games at Wimbledon this year, to Murray's 92%. However, he gives away five years and six inches to his Scottish opponent.
12.30Ferrer - a wonderful clay-court player - has transformed his form onto hard and grass-courts in recent months. He has also spent two hours less than Murray on court at Wimbledon this year - which could prove to be an advantage.
12.28Let's look ahead to Murray's clash with Ferrer - which is arguably the tie of the quarter-finals.
12.26We will be focusing our immediate attention on Federer's match with Youzhny this afternoon. However, we will also bring you live updates from Djokovic vs. Mayer.
12.24The final spot was grabbed by Radwanska who also secured her first spot in a Grand Slam semi-final with a late-night victory over Maria Kirilenko. The pair started at 2.20pm on Court One, but ended up on Centre at 9.48pm where Radwanska claimed the win.
12.22Second seed Azarenka will face Williams following a hard-fought victory over the unseeded Austrian Tamira Paszek. Meanwhile, Angelique Kerber made her first Wimbledon semi-final after winning a tight clash against Sabine Lisicki under the roof on Centre.
12.20Focusing on the women's round of fixtures. Serena Williams knocked out defending champion Petra Kvitova in straight sets yesterday to book her spot in the final four. It was as good a performance I have seen from Williams in recent years - and she has returned to number four in the world.
12.18Meanwhile, Brian Baker's tournament was ended by Kohlschreiber - who has finally made the quarter-finals of a Grand Slam on his 33rd attempt. The German has well and truly taken advantage of the unexpected exit of Rafael Nadal in his half of the draw.
12.16Weather update: After a cloudy morning, the weather is expected to brighten up this afternoon. However, the odd shower could join us this evening.
12.14As mentioned, Tsonga also advanced. However, he remains troubled with a back injury and with less than a day's rest - it is going to be a real test of character for the Frenchman today.
12.12Meanwhile, Ferrer impressed as he hammered Juan Martin Del Potro to reach his first quarter-final spot at Wimbledon. The Spaniard's tenacity around the court proved too much for the much-fancied Argentine who won the US Open in 2009.
12.10Let's take another look at yesterday's action. Murray remained focused despite the break in play on Monday to book his quarter-final spot. The Scot found it comfortable against Cilic in arguably his best performance of the Championships so far. However, in David Ferrer, he faces the man he lost to in the French Open last month.
12.08We will bring you a weather update soon - not that those on Centre will care so much! Which brings us nicely to the debate of whether it is 'fair' on those on Court One.
12.06As mentioned, the women's semi-final line-up was completed on Tuesday. Here are the fixtures: Serena Williams vs. Victoria Azarenka and Angelique Kerber vs. Agnieszka Radwanska.
12.04The opening match on Court One pits defending champion Novak Djokovic against Florian Mayer - before Jo-Wilfried Tsonga clashes with the surprise package Phillip Kohlschreiber.
12.02Six-time champion Roger Federer opens up Centre Court today against Mikhail Youzhny. Meanwhile, David Ferrer clashes with a certain Mr Murray in match two.
12.00Afternoon all! It seems just yesterday that play began at this year's Championships. However, men's quarter-final day is now upon us - and what a line-up we have.
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