Whenever I am losing, it's like, 'It's his fault'. And whenever I'm winning it's like, 'That's us'. That's the team, the people.

Don't get too excited when I am winning, and don't get too depressed when I am losing. Just keep it cool.

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've had good times and bad times. That's me. That's how I am.

But when I'm losing a few matches, suddenly 'It's his fault', 'He doesn't want to practice', 'He doesn't need it', 'He doesn't care'. And when everything goes well, there are people coming behind the stone, saying, 'Oh, my God, he's back finally, and I was there to help him out'.

Many say that (Pete) Sampras is the greatest player. But I say with all due respect to the rest, that he (Roger Federer) is the most complete player in the world so far.

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.