Not every child is cut out for an individual sport.

You're always striving to play that perfect match.

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.

I love hiking in the mountains in Aspen. Breathing the clean, fresh air is great. Plus, it gives me a cardiovascular workout and firms my legs.

Once you've been number one, you can never be satisfied with less.

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.

My first U.S. Open I think was just very special for me because that was sort of the beginning of what was a 'Cinderella' story for me.