Tennis is interesting because the women are almost more popular than the men. In the U.S. Open, women even get exactly the same money as the men.

When I was younger, I would eat everything.

When I was training for the Olympics, I didn't eat the way I should have. I missed out on much-needed protein and opted for every easy carb.

I love to run, but training can be hard, especially with a family and a crazy travel schedule. I often do sprints with my kids, where they bike and I run along side them so we can 'race' each other for a quarter-mile or shorter repeats.

I love to swim. When I jump in the water, I feel like I'm 12 years old again. It's really funny how it does that to me.

The things you learn from sports - setting goals, being part of a team, confidence - that's invaluable. It's not about trophies and ribbons. It's about being on time for practice, accepting challenges and being fearful of the elements.

The more sleep you get in before the clock turns midnight, the more rested you feel no matter what time your alarm goes off.