I feel old when I see mousse in my opponent's hair.

Now that I've won a slam, I know something very few people on earth are permitted to know. A win doesn't feel as good as a loss feels bad, and the good feeling doesn't last long as the bad. Not even close.

Tennis is a very objective sport in the sense that the scoreboard doesn't lie.

If you don't practice you don't deserve to win.

I play tennis for a living even though I hate tennis, hate it with a dark and secret passion and always have.

I suppose you could never say never, but my experience would tell me that the most successful players in the world are gonna come from an environment that is more competitive at an early age.

This is the only perfection there is, the perfection of helping others.