介绍:
Roger Federer beat Philipp Kohlschreiber in straight sets 6-3, 6-4, 6-4 to reach the last 16 at the US Open.
Kohlschreiber broke Federer twice in the match but the five-time US Open winner recovered well to limit the losses.
Federer says it could have been worse for him.
"There's just not much rhythm, to be quite honest. I think because of my serve and no rhythm, I might have gotten broken as well a couple of times in sets two and three. It's exactly those kind of matches I need to win. Especially if I drop serve, I still find a way and, I don't want to say comfortably, but I get maybe a little bit lucky at times, but also push luck on my side."
Stan Wawrinka, John Isner, Kevin Anderson and Andy Murray join Federer in the next round.
