Roger Federer: Why I lost to David Goffin at ATP World Tour Finals After Rafael Nadal had withdrawn earlier in the week, Federer was installed as an odds-on favourite to take his seventh title at the end-of-season tournament. However, he found himself undone by Goffin today, who bounced back from a set down to win 2-6, 6-3, 6-4. Federer particularly pin-pointed a moment in the second set, where Goffin broke the Swiss for the first time to lead 2-0, as a time he made a number of mistakes. “I think I didnt serve as accurate as I should have,” Federer said. “In that very moment he connected well on a few returns to keep him in the game. “I think in hindsight that was maybe a bit of a key moment in the match. “I think things really turned around for him at that moment. “He started to feel better from the return, from the baseline. “He wasnt missing as much any more. “He was returning also much better off the second serve after that. “I just think he raised his game. I couldnt follow any more. “Maybe my game dropped naturally a little bit because he was playing better. “Maybe I never really reached my best level because the first set was alright. “But he didnt play very well in that set, I dont believe.”. Federer had not been on top form in the run-up to the semi-final, dropping sets to Alexander Zverev and Marin Cilic in his group matches. But he had managed to eek out victories against both opponents and struggled to hide his frustration at failing to do the same against Goffin. “Its pretty disappointing,” Federer added. “But at the end he did play extremely well, and he was the better player on the court. “I feel like its okay like this for him to win. Its a bit disappointing for me because its indoors, its a court I like to play on. “But I had my chances and missed them. “When he had them, he was very committed. “I think that was the difference today.”.