Ninety percent of my game is mental. It's my concentration that has gotten me this far.

You're always striving to play that perfect match.

Don’t let a first-set victory lead into a second-set slump

Training the body to obey the mind as I have done differs from the more conventional method of getting the mind to obey the body.

Losing hurts me. I was determined to be the best.

To be a tennis champion, you have to be inflexible. You have to be stubborn. You have to be arrogant. You have to be selfish and self-absorbed. Kind of tunnel vision almost.

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.