I did it my way, and I have no regrets when I look back on my career that it was just a big focus for me.

Andre Agassi was my rival in the '90s, and I think as we got older we sort of transcended the game. He was probably the best player I ever played over my career. There's a list of players that were tough, but Andre, certainly, he was the most unique.

All I cared about in tennis was winning.

I loved Wimbledon and what it meant, but the surface felt uncomfortable. I just didn't like it, I was a hard-court guy, a Californian kid.

I know what I'm capable of doing. I just want to stay fit and healthy and let my football take care of itself.

It's reassuring knowing that people are supporting me and want to know more about me. It comes with being the national champion and making the Olympic team. I think that it's telling me I'm on the right path.

A friend told me about a Nike competition, where they give you one minute to do tricks with a basketball. I wasn't going to go, but they were giving away free sneakers. I ended up coming in second place.

At 13, I concentrated on my school work and playing sports, which, to this day, is something I still believe is very, very important.