The difference is almost all mental. The top players just hate to lose. I think that's the difference. A champion hates to lose even more than she loves to win.

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

If I win several tournaments in a row, I get so confident I'm in a cloud. A loss gets me eager again.

I always looked ahead.

You're always striving to play that perfect match.

I've had a lot of fear in my life, from fear of flying to fear of making a speech in front of a lot of people.

Ninety percent of my game is mental. It's my concentration that has gotten me this far. I won't even call a friend on the day of a match. I'm scared of disrupting my concentration. I don't allow any competition with tennis.