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

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.

It's always easier if you have the support of your family, if you're not alone. I came from a country that has been through a lot of troubles in the last 20 to 30 years, but we have been through them together.

When my boy arrived in this life, on this planet, it was completely a new dimension of experience for me and my wife. I'm still riding on the wave of that experience.

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

It has been the best thing that has ever happened in my life.

Well, I do feel that I carry the responsibility of representing my country wherever I am, and this responsibility came with the success that I had in last couple of years, not just myself but the whole group of tennis players that comes from Serbia. And athletes in general are, in this moment, the biggest ambassadors that our country has.