Roger Federer analyzed the reasons behind his straight-set loss to Stefanos Tsitsipas at the ATP Finals in London. The Swiss said: "I actually felt I was hitting the ball okay in the beginning, to be honest. If you take those two smashes away, actually things are okay.
I know now you say, like, Yeah, well, but you missed those two smashes. But they are not forehands and backhands and serves. I was actually doing that part okay, I thought, for the first whatever, 10 games, but then again, you know, to be broken 2-Love in the second set with I think no first serves made and stuff like that, and then when you do have the chance to finally get into the lead in the second set, you know, to throw it away again however I did it, it was just frustrating.
But again, I look across the net, and I thought that he played really well. He took the ball early. I know he does that. I thought I returned actually pretty good on the first serve. Second serve of breakpoints and stuff, I guess there were better moments, but for the most part I wasn't quite getting into the rallies the way I wanted to. Well, I think I have to credit him for pushing me to not playing at the level I was hoping to today."