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.

I like my groundstrokes, I can say. I like it. That's my game - I'm a groundstroke player and I play pretty aggressive.

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

In order to stay where I am - and I want to do that - I have to stay dedicated as well as I have been before I became No. 1.

Tennis players we're always playing in center courts that feel like arenas. And when we get on the court and the crowd cheers your name or salutes you - it's like you're a gladiator in the arena. And everyone is cheering - and you're fighting, you're screaming, during your strokes - it feels like you're an animal, fighting for your life.

My priority, the most important thing in my life is my family, my wife and my son.

We have a harder way to succeed in life as Serbs because of the past that we had and because of the history we had.