I myself am frustrated in just where sports are at. It's a hard thing when you're out there working every day, and you know that someone else is cheating and they may not necessarily get caught.

I'm just competitive. It doesn't matter what it is. I want to win.

I'm always nervous. If I wasn't nervous, it would be weird. I get the same feeling at all the big races. It's part of the routine, and I accept it. It means I'm there and I'm ready.

It was not until the end of my freshman year in high school that I thought I could really have a future in track and field. I definitely did not think I could make it to the Olympics back then, though; I was just focused on making it to the state finals!

I am a big believer in visualization. I run through my races mentally so that I feel even more prepared.

I never let track define me. That's something that's really important to me.

The pressure is hard. You get - the world is only watching every four years, and I think lots of people feel like they have to win in that time frame.