It is very important and my success very much depends on the harmony that I feel in my private life. It is essential for me to be happy in my private life. And if it continues, I am able to continue playing tennis.

I had a unique privilege to have a good start in life and a chance to develop my talents.

I'm a happy man, because I am successful in what I do, of course; but what makes me most happy is I have people around me that I love and who love me back. This, for me, is the most important thing. Nobody likes to be alone.

I embraced, I think, the process of becoming No. 1 of the world, which was long and difficult, but it's sweeter in the end.

Serbian history tells that family is the most important thing and you have to stick with the family.

... the winner is the one who believes in victory more.

I never wanted to change countries; it's something that is part of me.