Quotes

[on winning his second Australian Open title in 2011]: I dedicate this title to my family, my brothers, my girl Jelena, the people that have been with me for so many years, it has been a tough period for our people in Serbia, so this is for my country Serbia, thank you.

I am Serbian, I am proud of being a Serbian, I didn't want to spoil that just because another country had better conditions. A lot of athletes had been misunderstood in Serbia and it is still not easy always to be appreciated. But hope was there.

[on becoming the World No. 1 tennis player]: It's definitely one of the most important achievements and days in my life, in my career. We are all dedicated to this sport 100 percent. When you know you're going to be the best in the world and you're reaching the finals of your favorite tournament, it's something special.

[on bending down and chewing some grass from Centre Court, after winning at Wimbledon, 2011]: I felt like an animal. I wanted to see how it tastes. It tastes good! It came spontaneously, really. I didn't plan to do it. I didn't know what to do, for my excitement and joy.

[on donating $100,000 to vulnerable children in Serbia] I hope my donation and support will help make a difference in the lives of young children throughout Serbia, especially those who have fewer opportunities to reach their full potential. Building a solid foundation in the early years of a child's life will not only help him or her reach their reach their full potential but will also result in better societies as a whole. I want to help children in Serbia and around the world so they can realize their dreams. All children have rights and those rights must be protected.

Britain was offering me a lot of opportunities and they needed someone because Andy [Murray] was the only one, and still is. That had to be a disappointment for all the money they invest. But I didn't need the money as much as I had done. I had begun to make some for myself, enough to afford to travel with a coach, and I said, 'Why the heck?' I am Serbian, I am proud of being a Serbian, I didn't want to spoil that just because another country had better conditions. If I had played for Great Britain, of course I would have played exactly as I do for my country but deep inside, I would never have felt that I belonged. I was the one who took the decision.

[on women's tennis] They fought for what they deserve, and they got it. On the other hand, I think that our men's tennis world, ATP world, should fight for more because the stats are showing that we have much more spectators on the men's tennis matches. I think that's one of the reasons why maybe we should get awarded more.

My issue here with vaccines is if someone is forcing me to put something in my body, that I don't want. For me that's unacceptable.

1.3 billion people watch it, yet we can't have more than 400 people living from this sport, both men and women. I think we have to put that in our mind and really think about whether this sport is doing great or not.