Q. How would you rate that? 19 aces and everything, but some of it seemed a little bit unstable.
ROGER FEDERER: I think the conditions played pretty fast. You're not going to see, like, some brutal rallies where you can out-maneuver the guys a million times in a row. I think it's really like first-strike tennis to some extent. It can take you a while to get into that, you know.
I thought my serve was on and off in the beginning, which surprised me a little bit, because in practice, Hopman Cup, it's been going pretty well. I think there were definitely some nerves there. I was feeling nervous once the match actually started. I was actually fine all day, warming up, in the warmup five minutes with Jurgen. I felt fine. Then I hit four frames in a row. It was like, Whew, it's not as easy as I thought it was going to be. I.