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

The Olympics is not for tennis and tennis does not need the Olympics. It is not my goal in life to win a gold medal.

I definitely want to get out of tennis and try something completely different.

You can find flaws in Agassi and Sampras, but Federer has none.

It was really impossible to break through in Russia. We couldn't buy any balls. We really didn't have any courts, no rackets, nothing. And no people to practice with.

You cannot change me; this is the way I am.

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.