The trouble with being number one in the world - in anything- is that it takes a certain mentality to attain that position, and that is something of a driving, perfectionist attitude, so that once you do achieve number one, you don't relax and enjoy it.

I think it's really important to have portion control. I don't believe in losing weight quickly.

The main thing is to care. Care very hard, even if it is only a game you are playing.

As far as U.S. tennis, we need new stars coming up in the pipeline, but I don't know if we have it.

In the complete overall history of tennis, I figure I'll be worth a sentence or two.... That's why my place in the all-time rankings means so very little to me, because I know I won't be anybody's number one, and it's that same old thing: if you're not number one, then what does it really matter?

Reputation is what others think about you. What's far more important is character, because that is what you think about yourself.

Each point I play is in the now moment. The last point means nothing, the next point means nothing.