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.

I knew I was the second-best tennis player in the state of Florida and No. 8 in the United States of America when I was 12 years old and I couldn't tell you what I was in baseball, but I liked my chances in tennis of getting a scholarship to college.

I am there to play tennis and represent the U.S., but I'm also aware that not everyone's going to be able to think that way.

I think all of us are shaped by the choices we make.

The first thing I would do is create one office that controlled all of pro tennis so you had one central voice that spoke for tennis. Central governance is something that's really held the sport back and will continue to do so.

You can kick a ball into the net, throw a basketball into the net. Tennis is complicated. It'll make a lot of great athletes run the other way because they can't be successful initially.

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.