I am grateful to life. And also to the people who have brought me here. Without them, I could not be where I am now.

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

I'm happy, my family's happy, everything is going well.

I'm trying not to pay too much attention to the rankings because calculations can distract you.

I think luck falls on not just the brave but also the ones who believe they belong there.

In my case, I can sincerely say that nothing is impossible... When I was saying I want to be No. 1 of the world, and I was seven or eight years old, most of the people were laughing at me because it seems like I have one percent of chances to do that, and I've done it.

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