Hello and welcome to Sports Mole's live coverage of the match in the Premier League between West Ham United and Chelsea. The Blues will fancy their chances of extending their six-game winning streak, but West Ham are on a high after beating Everton last weekend. Let's see who features in each starting lineup...

WEST HAM UNITED XI: Fabianski; Zabaleta, Balbuena, Diop, Masuaku; Noble, Rice, Obiang; Yarmolenko, Anderson, Antonio

WEST HAM UNITED SUBSTITUTES: Adrian, Cresswell, Fredericks, Ogbonna, Sanchez, Snodgrass, Perez

CHELSEA XI: Arrizabalaga; Azpilicueta, Rudiger, Luiz, Alonso; Jorginho, Kovacic; Willian, Kante, Hazard, Giroud

CHELSEA SUBSTITUTES: Caballero, Cahill, Zappacosta, Moses, Fabregas, Barkley, Morata

Let's start with West Ham and the big news is that Marko Arnautovic misses out on selection for this game through injury. The Austrian sustained a knee problem against Everton last weekend, and it is enough for the forward to miss out today.

The absence of Arnautovic means that Michail Antonio has been brought into the starting lineup. Antonio has already made three starts in the Premier League this season and has performed well enough to justify his recall to the first XI.

The rest of the side has remained the same, with Declan Rice being given another opportunity in the middle of the park after his strong showing against the Toffees. Fabian Balbuena and Issa Diop are Pellegrini's choices at the back.

Lucas Perez has kept his place on the substitutes' bench. There was talk of some sort of disagreement over the warm-up in the second half last weekend, but the Spaniard still features in the 18-man squad.

As for Chelsea, Sarri has made numerous alterations to the team which began the Europa League victory over PAOK, but they were all expected. Mateo Kovacic had been the main fitness doubt, but the Croatian features in midfield.

Sarri and Pedro have both suggested that the winger's shoulder injury - sustained in Greece - is not serious, but it is enough to keep the Spaniard out of the squad for this match. Eden Hazard comes back into the team having been rested.

David Luiz is also selected having sat out the Europa League encounter, and the Brazilian partners Antonio Rudiger for the sixth successive Premier League game. Further forward, Olivier Giroud has replaced Alvaro Morata.

Ross Barkley would have hoped for another start after impressing against PAOK, but the English playmaker is only named among the replacements. Sarri will not take any risks with Barkley missing most of last season with a hamstring injury.

Chelsea head into this game in third place in the table, but will return to the top of the standings with a two-goal win. West Ham are 17th but the Hammers can go as high as 13th position with success over one of their rivals.

It's a bit wet at the London Stadium...

West Ham enjoyed a solid season under David Moyes last year but remarkably, the Hammers have not recorded back-to-back wins in the Premier League since January 2017! That could change this afternoon.

On the flipside, West Ham are looking to avoid three successive home defeats at the start of the season for the first time with Bournemouth and Wolverhampton Wanderers having already prevailed in East London.

West Ham have only suffered two defeats in their last six London derbies - not a bad record you may think. However, the Hammers are also six matches without a win against any of their local rivals.

Pellegrini has been tinkering with his team ever since the start of the season and only one outfield player has not missed a single minute - Fabian Balbuena. The centre-back has not always been impressive since his arrival in the summer, but it appears that Pellegrini is looking to build a defence around the Paraguay international.

He is one of 14 - FOURTEEN! - different West Ham players who have received a yellow card over the opening five matches. You have probably guessed that it is a Premier League high.

Chelsea head into this game looking to win their opening six Premier League matches for just the third time. They won the title when they did just that in 2005-06 and 2009-10.

Sarri is also looking to become just the third manager to win his first six fixtures in the Premier League after Carlo Ancelotti and Pep Guardiola.

The Blues were inconsistent at the end of last season, but the West Londoners have won five of their last six games on the road. Their only defeat came away at Newcastle United on the last day of the most recent campaign.

While West Ham have just one outfield player who has played every minute in the top flight so far, as many as six Chelsea players have done the same - Azpilicueta, Rudiger, Luiz, Alonso, Jorginho and Kante.

Chelsea made it out for their warm-up a short time ago. Looks like they will be wearing their yellow away kit for this afternoon's match.

PREDICTION! The mood at the London Stadium should be a positive one after last week's success on Merseyside, but Chelsea possess the style of play to frustrate both the opposition and their supporters, and we expect Chelsea to run out comfortable victors in East London, perhaps by a 3-1 scoreline.

HEAD TO HEAD! Sunday's fixture represents the 111th competitive meeting between the two clubs, with Chelsea registering 49 victories in comparison to 40 wins for West Ham.

The last 10 contests have been evenly matched, with Chelsea winning four times and West Ham claiming three triumphs, two of which have come at the London Stadium.

Chelsea have suffered defeat on their last three visits to the Hammers. West Ham prevailed by a 1-0 scoreline in the corresponding fixture last season thanks to Arnautovic's early goal.

Before we get going in East London, a reminder that you can follow the the game between Arsenal and Everton from the Emirates Stadium at the conclusion of this match. Sports Mole's coverage begins at 3pm, BST.

It's time for the two teams to start making their way out at the London Stadium. The mood in the West Ham sections of the stadium is currently a positive one, but how long will that last if Chelsea keep the ball away from their hosts?

A reminder of the two starting lineups...

WEST HAM UNITED XI: Fabianski; Zabaleta, Balbuena, Diop, Masuaku; Noble, Rice, Obiang; Yarmolenko, Anderson, Antonio

CHELSEA XI: Arrizabalaga; Azpilicueta, Rudiger, Luiz, Alonso; Jorginho, Kovacic; Willian, Kante, Hazard; Giroud

KICKOFF:  Chelsea get us underway.

Both teams have started well. Chelsea are seeing the majority of the ball, but West Ham have already forced the visitors into a couple of mistakes.

As expected, Chelsea have very little space to work with in the final third. West Ham are content to keep seven players in a deep position with the intention of trying to launch counter-attacks.

West Ham finally get their foot on the ball and they are passing it about with intent. The home supporters will be encouraged by this because Chelsea have the ability to suck the life out of this game. Right now, they have some defending to do.

Zabaleta is getting plenty of space down the right flank. Alonso is moving inside to tighten things in central areas when Chelsea don't have the ball and Hazard is not tracking back. One to keep an eye on.

CHANCE!  The first chance of this game goes to Chelsea. Willian's outswinging corner finds the run of Giroud, who miscues a volley from 12 yards when he really should have scored. Fabianski made an easy save.

SHOT!  Chelsea are growing into this. Rudiger is not shy in getting a shot away from distance and he does just that on this occasion, but the defender's 30-yard strike goes straight at Fabianski.

CHANCE!  The pressure is building. Chelsea put together a nice move on the edge of the area before Hazard sees a left-footed effort comfortably saved. The Belgian was moving away from goal so he struggled to generate the power required to force the ball into the far corner.

Chelsea have reverted to keeping hold of possession but they are now bossing this game. West Ham need to find a response or else an opening goal for the visitors feels inevitable.

Such is Chelsea's dominance that Kante has very nearly just headed his side in front from an Alonso cross. Diop got in front of the midfielder just in time.

West Ham finally regain possession and attempt to launch a break down the right through Yarmolenko, but Luiz gets across to make the challenge before the Ukrainian can advance towards the penalty area.

This is much better from West Ham. The Hammers counter through Anderson and the summer signing gets the ball into the six-yard box, but Luiz makes the interception in front of his own goal.

Both Noble and Willian have attempted speculative efforts over the past couple of minutes, but neither come close to open the scoring.

This would have been a special goal. Jorginho's floated pass over the top of the defence is delightful and Giroud has the chance to volley first time on the turn, but the Frenchman slices his effort and Fabianski is able to claim.

This match remains competitive, but you just feel that Chelsea's pressure will eventually pay off. West Ham are having their moments, but not regularly enough.

More of the same from Chelsea who are trying to draw the West Ham defence away from their own 18-yard box. It's not working so far. West Ham are more than happy to continue as they are.

CHANCE!  HUGE opportunity for West Ham. Anderson deceives Azpilicueta, storms forward and plays in Antonio who gets in behind the Chelsea defence. However, the attacker's shot is rushed and sent well over the crossbar from 14 yards out.

CHANCE!  And again! Yarmolenko breaks forward and is eased out by Luiz, but the ball falls to Antonio who is superbly denied by Arrizabalaga at his near post.

West Ham have started to swarm Chelsea, but the visitors keep their composure to put together a counter through Hazard who thinks he is fouled on the edge of the area. However, the referee decides that there was little contact with Rice.

This has developed into an absorbing match. Not in terms of chances created, but West Ham mixing things up to cope with the quality which is coming at them from Chelsea. For all of Chelsea's possession, West Ham have had the two best opportunities.

It is turning into a frustrating afternoon for Hazard who still can't find any way through this West Ham defence, who are certainly more resolute than they were at the start of the campaign.

Chelsea are back in the ascendancy but the openings have dried up. West Ham's swift counters have forced the Blues to reassess their ambition, especially at this stage of the first half.

West Ham regain possession after a foul on Antonio from Luiz, but nothing comes from the resulting set piece. Just the four minutes to go until half time now. West Ham will be delighted with how things are going.

If Chelsea are to get through this West Ham defence, they may need an extra creative player on the pitch. Kovacic and Kante are doing similar roles, and Barkley may add something different if introduced.

CHANCE!  Kante has clearly read that last comment because he comes close to giving Chelsea the lead. Willian's first-time volleyed cross found the run of the midfielder, but the Frenchman's glancing header went just wide of the far post.

HALF TIME:  West Ham United 0-0 Chelsea

The half-time whistle goes at the London Stadium and West Ham and Chelsea remain on level terms. Chelsea have dominated possession and the amount of chances created, but the best opportunities have gone to West Ham. We should be in for a good second half.

Chelsea's best chances have gone the way of Giroud and Kante. The former should have done much better when meeting an outswinging corner from Willian, while Kante also benefitted from a pass from the Brazilian only to glance a header wide of the far post.

West Ham's openings came either side of the half-hour mark. Good work from Anderson led to Antonio getting in behind the Chelsea defence and sending a shot high over the crossbar, before a run from Yarmolenko eventually resulted in Antonio having an effort blocked at the near post by Arrizabalaga.

KICKOFF:  West Ham get us back underway. No changes for either side.

Both teams have come out for the restart on the front foot, with timely blocks needing to be made at either end. West Ham don't look like they will settle for a point this afternoon.

YELLOW CARD!  The first caution of the match goes to Kante, who dives in late on Anderson. No complaints from the Frenchman.

SHOT!  Yarmolenko cut inside to score with his left foot last weekend, and he almost does the same here from further out. However, the summer signing's well-struck effort goes marginally over the crossbar.

YELLOW CARD!  Now Anderson goes into the book for a foul on Willian. Chance for Chelsea to get the ball into the box from the right flank, but they commit an infringement by the penalty spot.

CHANCE!  Big opportunity for Chelsea. Luiz gets on the end of another superb delivery from Willian, but the defender sends a free header high over the crossbar from 12 yards.

Antonio finds himself one-on-one with Rudiger close to the halfway line and the West Ham attacker attempts to out-sprint the Chelsea man. It's not happening though, and the defender is able to get the ball back to Arrizabalaga.

We can't be too far away from the first substitutions. You'd imagine that Snodgrass and Barkley are in line to be introduced quite soon. Both teams need something extra in the final third.

You have to wonder whether Chelsea's late return from Greece will hinder their efforts in the closing quarter. The Blues have only been back in the country for 48 hours due to a cancelled flight.

The West Ham supporters are doing their best to inspire their team. They have gone a little flat over the past five minutes with Chelsea starting to push them further back without creating anything clear-cut.

SUBSTITUTIONS! A change for both sides. Morata is on for Chelsea - replacing Giroud - while Perez comes on for Antonio for West Ham.

CHANCE!  Chelsea should be ahead. Luiz gets on the end of Willian's cross but the ball falls to Morata who is waiting eight yards out. However, the substitute's effort hits Fabianski flush in the face and the ball stays away from the back of the net.

SUBSTITUTION! We are going to see Cahill's first appearance of the season, without much of a warm-up either. Rudiger looks like he has sustained a groin injury.

Less than 20 minutes to go now and Chelsea still need something extra in the final third. They are dominating the ball but there is a lack of a cutting edge.

SUBSTITUTION! A second alteration for West Ham sees Snodgrass introduced for Anderson.

Hazard has had "one of those days" today and another final pass fails to come off as he tries to pick out Morata. The Belgian should have got a shot away himself.

SHOT!  Chelsea win a free kick from 30 yards, but Luiz's shot is tame and too close to Fabianski. That was ambitious.

CHANCE!  How has Yarmolenko missed?! Snodgrass's cross is perfect for the Ukrainian to head home without any pressure at the back post, but the ball goes wide of the far post. What an opportunity.

SUBSTITUTION! Chelsea's final alteration sees Barkley come on for Kovacic.

CHANCE!  Willian has been Chelsea's best player by far, and the playmaker breaks down the left before teeing up Kante. However, his teammate's first-time shot goes over the bar from 14 yards out.

Chelsea have had the ball for the last two minutes but all that comes from it is a corner which goes straight into the hands of Fabianski.

SUBSTITUTION! Pellegrini opts to replace the tiring Noble with Sanchez.

The West Ham fans are really getting behind their side here. They are responding to the players pushing for all three points rather than being content to seal a goalless draw.

Chelsea have the ball in the net as Morata converts Kante's pass, but both players are two yards offside.

SHOT!  Barkley almost wins it for Chelsea! His long-range curler is heading towards the bottom corner, but Fabianski gets across to tip the ball behind. There are going to be four minutes of added-on time.

CHANCE!  Now Willian squanders a glorious opportunity. Jorginho picked him out with a stunning pass, but the winger fired the ball across goal and well wide of the far post.

YELLOW CARD!  Snodgrass goes into the book for a cynical foul on Willian. Nothing comes from the resulting set piece.

FULL TIME:  West Ham United 0-0 Chelsea

The full-time whistle goes at the London Stadium and West Ham have held on to record a deserved point against Chelsea, whose 100% record in the Premier League comes to an end. For a goalless draw, that was an excellent game.

That will be all from Sports Mole for this match. Thank you for joining us this afternoon, and we hope that you can stick around for our coverage of Arsenal's fixture with Everton.

If you would like to read our on-the-whistle match report, you can do so by clicking here. Goodbye for now.