Tennis doesn't encourage any kind of intellectual development.

If they had rankings in baseball, maybe I would have been able to do the math and figure out my chances of being a professional baseball player versus a tennis player. But that was the decision-maker for me, I just thought I was better in tennis.

I really try not to read the tennis articles, because a lot of times they're guessing at how a player is feeling, and I like to keep myself kind of open minded about how I'm feeling, rather than have someone else explain to me what's going on.

I think there's no reason the Davis Cup couldn't be as powerful and popular and profitable as any of the four majors are today, given some changes.

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.

I have so much respect for him and what he brings to the court, his tenacity out there, his numerous abilities, foot speed, his shot selection, his cunning on the court.