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.

It's like love. When you look too hard, you don't find it. When you let it happen naturally, it comes.

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.

Probably I'll not be so successful if I will keep everything in myself inside of me.

If I was the type of person who had tennis, tennis, tennis all the time and I went to bed and ended up dreaming about tennis, I would go nuts.

'I think as a guy you need a little bit to be on your own from early on, to start to live your own life, and try to understand what is going on around you, you have to be able to survive...

You're playing or you're not playing. If you're playing, so just shut up and play.