After I went through two years of not winning an event, what kept me going was winning one more major. Once I won that last U.S. Open, I spent the next six months trying to figure out what was next. Slowly my passion for the sport just vanished. I had nothing left to prove.

I've always led a pretty simple life, with few extravagances. The money in tennis never drove me.

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

Throughout my career, my mind rarely wandered, and I was never sidetracked by distractions, no matter what I was going through off the court.

When you come back strong, you are going to have little nagging things that you can usually play through, but every now and again, it is to the point where you can't play.

Golfers are forever working on mechanics. My tennis swing hasn't changed in 10 years.

I did it my way, and I have no regrets when I look back on my career that it was just a big focus for me.