I could go and make commercials left and right and pretend like I am a celebrity, but that is not me.

I love tennis, but I just don't like grass.

It's frustrating when you want to play but can't. I didn't touch a racket for three weeks and when I started playing again last week, I still felt some pain in my wrist.

If you get operated, something can go wrong and you can just say bye-bye to tennis. That's what happened to a lot of soccer players in Europe. They get operated, some things, it's not the mistake of the doctor. It's just some surgeries, they just don't go the right way...My injury will never go away. It's already become so chronic there's no chance to fix it so I can play without pain.

Roger [Federer], he brought tennis... one level higher. Normally he toys with everybody. With all respect to other players, he does whatever he wants on the court against them. It's incredible what kind of game he can play.

I'm not a materialistic person.

I was very competitive. I hated losing. No matter what, I had to win.