Sports for me is when a guy walks off the court, and you really can't tell whether he won or lost, when he carries himself with pride either way.

When I turned professional, what I was really aiming for was to be in the top 100, try to hold the top 100 for ten years, and just be in the show, and have a nice career. It's more than I could have ever hoped for. I worked awfully hard for it, but there are other people who worked just as hard and didn't get the breaks. I recognized that I've been lucky and being able to live this life that I wanted since a young age. I really went after it with everything that I have and somehow it worked out.

Flying has opened up new horizons for tennis.

I think all of us who kind of live within the sport recognize that Davis Cup certainly could be a little more visible if perhaps there were some adjustments made to it, and it was made a little bit more easy to understand for the fans, if there's a little bit more of a start and finish line.

There are only four U.S. tournaments that the very best players in the world play every year - Palm Springs, Miami, Cincinnati, and the U.S. Open. So how would golf or NFL or NHL fare if there were only four times a year that their very best were visible? Tennis went international, and for us to expect it to be popular media-wise is very naïve. And that translates into children and families being interested.

Hell be lucky to last five or six years on those knees. What it might have to come down to is playing less on hard surfaces and playing more on forgiving surfaces.

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.