Novak Djokovic described his epic Wimbledon final victory over Roger Federer as the most mentally demanding match of his career.
The defending champion saved two match points in the fifth set before winning the first deciding tie-break played in singles at the All England Club for a 7-6 (5) 1-6 7-6 (4) 4-6 13-12 (3) victory after four hours and 57 minutes.
It was the longest men's singles final in Wimbledon history and brought Djokovic a fifth title, equalling Bjorn Borg and now just three behind Federer.
The Serbian is closing in on Federer's all-time grand-slam record, too, with his 16th title leaving him four off the Swiss and only two adrift of Rafael Nadal.
"It was a huge relief in the end, honestly," said Djokovic, who once again proved himself the master at winning the points that matter.
"These kind of matches, you work for, you live for, they give sense and they give value to every minute you spend on the court training and working to get yourself in this position and play the match with one of your greatest rivals of all time.
"It was probably the mentally most demanding match I was ever part of. I had the most physically demanding match against Nadal in the finals of Australia that went almost six hours. But mentally this was a different level, because of everything.
"I'm just obviously thrilled and overjoyed with emotions to be sitting here in front of you as a winner. It was one shot away from losing the match. This match had everything. It could have gone easily his way.
"In these kind of moments, I just try to never lose self-belief, just stay calm, just focus on trying to get the ball back, return, which wasn't serving me very well today. But, in the most important moments, all three tie-breaks I guess, I found my best game."
It was an extraordinary contest. The sustained quality was not the same as Federer's final loss to Rafael Nadal in 2008, which this match passed as the longest title decider, but it had more plot twists than a feature-length thriller.
Federer, who won 15 more points in the match, was the better player for all of the first four sets, with Djokovic's game strangely off colour apart from his serve, but played two poor tie-breaks either side of a set that his opponent barely turned up for.
He said: "Similar to getting broken when serving for the match: take it on your chin, you move on. You try to forget, try to take the good things out of this match. There's just tons of it.
"Similar to '08 maybe, I will look back at it and think, 'Well, it's not that bad after all'. For now it hurts, and it should, like every loss does here at Wimbledon.
"I think it's a mindset. I'm very strong at being able to move on because I don't want to be depressed about actually an amazing tennis match."
After the men's match on Cente Court, Su-Wei Hsieh and Barbora Strycova beat Gabriela Dabrowski and Yifan Xu 6-2 6-4 in the women's doubles final.
Earlier in the day on No.1 Court, Ivan Dodig and Latisha Chan defeated Robert Lindstedt and Jelena Ostapenko 6-2 6-3 in the mixed doubles, while Japan's Shintaro Mochizuki won the boys' singles final.