Once the fifth set comes, it's a matter of nerves.

I guess I get my strength from my legs, which are also important in tennis.

Anything can happen out there on any court.

Media access to us is more regulated than in golf.

I may be a step slower than I was before reaching 30, but I'm doing all the right things. I guess there are some guys who would take it easy in the latter part of their careers, but I'm stepping it up.

Most of the time after the US Open, it is kind of like you are trying to finish strong. But to do it five years and maybe six is something that has never been done before, so it is a huge challenge.

My goal one day is to be in the same sentence as Rod Laver and Ken Rosewall.