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.

Thinking about your training should put a smile on your face. As cliche as it sounds, you are worth all the time and energy you've put in. Unleash your emotions with a cheer, or even a signature roar, after a tough workout.

As a woman, you need to take control of your health. There's no harm in going in and getting checked out. Eventually, you have to ask yourself: 'Do I want to live at 100% or 80%?'

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.

Quite simply, my diet has and will always be everything in moderation. People look at Olympic athletes and think they must cut out all those things everyone else indulges in, and speaking for myself, I never did.

I don't care how much you're working out; when you go to put on that bikini, you're like, 'Oh no!'

A great way to get all the right nutrients is to make a colorful plate - mix of good vegetables, carbohydrates, and protein. If you notice all your vegetables are green, change it up and add another color for a variety of benefits in one meal.