Even though there are a lot of bright tennis players out there, you still have to protect yourself and save all your mental and emotional energies for tennis.

Relationships are give-and-take, and when you're a tennis player, you're certainly not giving. You have to be self-absorbed. It has to be about you.

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

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.

I was very, very shy as a younger girl, just petrified of people. Tennis helped give me an identity and made me feel like somebody.

You've got to take the initiative and play your game. In a decisive set, confidence is the difference.