Q. When some of us write that you're at the top of your level and you cannot be beaten, do you agree with that or not?
SERENA WILLIAMS: Yeah, I do. I always said that when I'm playing my best --
Q. -- nobody can beat you?
SERENA WILLIAMS: I always say it's difficult to beat me because I serve pretty good, I have a pretty good return, I'm pretty fast. If I'm doing all those things combined, you know, it's definitely difficult to win.
Q. Roger didn't make his goal of 18 and 6. Did that impact you in any way? Make you nervous at all?
SERENA WILLIAMS: Got a little nervous. Thought it wasn't meant to be for us. At least one of us made it.
