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.
I stopped thinking too much about what could happen and relied on my physical and mental strength to play the right shots at the right time.
The tradition in Serbia has always been team sports - football, basketball, handball, volleyball and water polo, individual sports are not supported.
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.
People look up to me as somebody who is able to switch the image of our country from negative to positive.
Even though now I'm pretty popular in my country and tennis is the No. 1 sport, and I'm very flattered that the people recognise me and come up and give me compliments, I'm more a person who likes to have privacy and peace.
My father had never watched tennis, never liked tennis too much. He said, 'OK, we buy a racket, we watch together, ' because we didn't know anything. It was a process of learning together that made it more interesting.
My mother is a special story. She went through so much to bring us up, four men at home, especially when our country was going through really difficult times.
But, it's because we have a harder way to succeed in life as Serbs because of the past that we had and because of the history that we had. We have to dig deeper and we have to do much more in order to be seen and to be spotted.
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.
The history of our country is cruel. We have to face those issues or, should I say, we had to. Not anymore I hope, because we are going in the right direction, and we are ready to forgive, ready to move on.
Serbian history tells that the family is the most important thing and you have to stick with the family.
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.
My father never talked about the sacrifices that the family made for me.
Those born into poverty or on the margins of society require our extra support to realize their dreams.
I want to help children in Serbia and around the world so they can realize their dreams.
My nutritionist has done a great job in changing my diet after we established I am allergic to things like gluten - I can't eat pizza, pasta and bread. I have lost some weight, but my movement is sharper and I feel great.
I don't think there has been enough communication between the players and the tournaments. In one sense it's just as much the players' fault. Players talk between each other and in the locker room about things that can be improved and then when the time comes to talk and really do something about it they stop.
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.
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.