I had a great tennis career. I have no regrets. But to find peace with yourself, and to finally be with your family - I'm probably the happiest guy in the world.

You know growing up in Sweden meant we had a lot of rain when we played tennis. We were taught on clay courts but because of the weather, we had to go indoors a lot.

The ball is round, the game is long.

I was fascinated by a compelling character embroiled in a controversial topic that told the story from a different point of view.

I have a great family, great kids. I have practically everything, you know? Sometimes I have to pinch myself. It's really true: Life starts at 50.

You never know how long Federer is going to play, but in my opinion he has at least one or two more grand slams to win. It depends how long he stays motivated. For me, he is the greatest player to ever play the game.

If you're a good experienced player, you wknow what it takes to do. If you're in trouble, you know how to change. One hundred percent of my game is instinct. I never stop and think I'm going to hit a ball crosscourt or down the line. I just do it.