If you can react the same way to winning and losing, that's a big accomplishment. That quality is important because it stays with you the rest of your life, and there's going to be a life after tennis that's a lot longer than your tennis life.
Ninety percent of my game is mental. It's my concentration that has gotten me this far.
Every time, all the time, I'm a perfectionist. I feel I should never lose.
I always looked ahead.
If you're a champion, you have to have it in your heart.