I can't become satisfied, because if I get satisfied, I'll be like, "Oh, I've won Wimbledon, I've won the U.S. Open. Now can I relax." But now people are really going to be fighting to beat me.

I think it's bad when people start booing between serves.

My goal in a couple of years is to try to build a successful fashion house like Armani or Versace. I want that more than anything.

Am I the greatest? I don't know. I'm the greatest that I can be.

I don't go thinking I'm going to lose. I never go into a tournament thinking that. I'll do the best that I can.

I love tennis more than designing because it's actually easier and I don't get nearly as nervous.

Hopefully I'll be able to mature one of these days, get serious, and at least have them [kids] pretty fast.