I always say that when I'm playing well, no one can beat me. I'm not just saying that to sound full of myself or anything, but it's true.

I was glad to watch the soccer because it helps my tennis game, realize maybe they're just rooting for the underdog.

Yeah, um, I do twitter because I want people to, you know, get to know me, my fans, or my fans to get to know me, you know, just see what type of person I am. You know, hopefully be more on an intimate level with me as opposed to a distant level.

It's remarkable she [Venus Williams] plays at all, given her Sjögren's syndrome [an autoimmune disorder that can cause joint pain]. She's back, winning tournaments. She didn't allow society to tell her, "You have this disease; you can't do that anymore." I look at her, like, "She's not playing at 100 percent. You are. You don't have excuses." Knowing what she went through helped me try to be a more positive person.

The guy is the greatest male athletes of all time.

I don't have anything to prove ever, ever in my life. If I have something to prove, what does that mean for everyone else? And I think everyone should have that attitude.

I want it to be more natural. Right now it feels really forced. Seems like I've never done a curtsy before, which may be true. But I'm looking forward to nailing it.