When I was 18, 19, I was presented as the 'aw shucks' Nebraska kid who's coming up with a big serve, and then I flipped out a couple of times, and then I was ueber-brat, when I feel like there's parts of both, but I don't think I am either one, if that makes sense.

Well, immediately we announced yesterday or the day before we're building, with my foundation, a youth tennis and learning center in Austin. I'd like to be hands on with that and not see it periodically.

I think it's foolish to think that if you've done something for so long, you can kind of delete it out of your memory bank or delete every emotion attached to it. I knew when I retired what that meant.

My entire career, I've been a worker.

Beauty, pleasure, freedom and plenty of sleep: these are the hallmarks of a successful idler's break. Travel should not be hard work.

This is the World Cup, and you need all the elements in place: a good coach, luck, and a cohesive team unit are fundamental requirements.

Basketball is booming, and it's not just an Under Armour standpoint: it's about the game itself. Kids going out and playing and being inspired by what we do on the court.

My older brother was always in the gym, and I saw how hard he worked. Around middle school, I was in there with him, and I started to love it. But it wasn't like I had a basketball in my hand at age 2.