My father believed in me many times more than I believed in myself.

Imagine a part of the U.S.A., from which the U.S.A. started - where is the cradle of your history? This is Kosovo for Serbia.

I always try to have something that keeps my mind relaxed, keeps my mind a little bit off tennis.

In terms of playing ability there is nothing to choose between number one and 100. Instead, it's a question of who believes and who wants it more? Which player is mentally stronger? Which player is going to fight the hardest in the big points? These are the things that determine who is the champion.

You have to consistently be successful to be one of the top players in the world, and everything is possible in life.

I had a nice childhood. War and all the experiences affected me as a person and helped me to grow, to change.

It's interesting that I had such a close relationship with my grandfather. Because your parents always judge you: they say, 'You shouldn't do this, you shouldn't do that.' But with your grandparents you have a feeling that you can say anything or you can do anything, and they will support you. That's why you have this kind of connection.