I've been cheered by thousands, booed by thousands, but nothing feels as bad as the booing inside your own head during those ten minutes before you fall asleep.

I suppose you could never say never, but my experience would tell me that the most successful players in the world are gonna come from an environment that is more competitive at an early age.

Tennis was always sort of a - a learning. It was a vehicle for me to discover a lot about myself. And the things that I sort of discovered at times I not only didn't want to see it for myself but I certainly didn't want millions of people to see it.

I feel old when I see mousse in my opponent's hair.

This sport has given me so much that my hope would be to give back as much as I can for as long as I can.

In tennis you're on an island. Of all the games men and women play, tennis is the closest to solitary confinement.

It never seizes to amaze me how much I enjoy playing here and how much you fans have meant to me over the years.