When I play, I'm boiling inside. I just try not to show it because it's a lack of composure, and if you give in to your emotions after one loss, you're liable to have three or four in a row.

Every time, all the time, I'm a perfectionist. I feel I should never lose.

If you can react the same way to winning and losing, that's a big accomplishment.

When I was younger, I was a robot. Wind her up and she plays tennis.

I was labeled at a young age - Miss Unemotional, Miss Cool, and that would carry over to my press conferences.

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.

If you're a champion, you have to have it in your heart.