It's kind of difficult. It (the knee injury) is still in my head. When you feel some pain in some movements, you try to avoid those. After the first couple of games, I tried to forget about it and focus on the game.

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 think the crowd should get a video cassette of this match because it was a classic,

It was a very, very good match and I am happy to have won a five-setter.

I was missing a little bit of energy. I got sick two, three days ago, and I'm still a little bit weak.

I think he had quite bad losses, for example, in the Davis Cup against us...He was supposed to be in the Top 10. I think it's a little bit a pity because he's quite talented guy. But he can be there, but he needs to be more brave, that's for sure.