To be a champion, I think you have to see the big picture. It's not about winning and losing; it's about every day hard work and about thriving on a challenge. It's about embracing the pain that you'll experience at the end of a race and not being afraid. I think people think too hard and get afraid of a certain challenge.

The kids know what I'm doing when I exercise, and that's powerful. So don't just tell your kids to go play outside. Take a moment off your computer, put on your tennis shoes, hop outside and help them start their game and run off some energy.

Here's what I've learned about eating healthy when you're busy: It's all about preparation. Make your snacks on Sunday, and you will be good to go until Thursday or so.

It really was my brother who got me involved in swimming. I wanted to be just like him and do everything he was doing.

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.

There is nothing in this world that I love more than my family. To be able to share the joy of running with them at the Runner's World Half Marathon and Running Festival where we can all participate together is as close as you can get to a perfect weekend.

At the end of a marathon, it's going to hurt whether you're speeding up or slowing down. You may as well push.