There's a reason why Federer and Nadal are so gracious when they lose. They sleep well at night knowing that they've given their best.

You can drill down on where hunger comes from and figure it out from there, but there absolutely has to be a sense of urgency if you're going to play tennis because you're the team - there's no one for you to rely on but yourself.

There are things we can't control - like the wins and the losses.

You'd have to think that if he'd been around today, Rod Laver would have been Rod Laver.

Even the poor can be fat in the U.S. That says something about a country. That's how incredible what we have is. But it can also take away incentive.

I think the Davis Cup has some untapped potential. It should be as prominent as the Grand Slams when it takes place. If you put it together with Fed Cup for an organized, nationalistic team competition taking place in a central location for two weeks, I think that would be beneficial from a fan interest stand point, from a media stand point and from a television stand point.

I've been lucky enough to primarily work for myself over the years.