It gives me goose bumps and little butterflies in the stomach when I start thinking about the 'golden slam.'

I remember as a kid, I was improvising and making little trophies out of different materials and going in front of the mirror, lifting the trophies and saying 'Nole was the champion!'

I want to help children in Serbia and around the world so they can realize their dreams.

I am the greatest tennis player. The other players are like coins in my pocket that I give to a homeless man.

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.

Coaches are very important to players. They're people that are mentors, people that are advising them, people that should be their friends and somebody you can rely on on the tour.

I have been through two wars in my 24 years, and I know what it's like to be without anything, to see the bombs flying above your head.