Tennis has given me so many opportunities, and I feel very lucky to have achieved whatever I have, especially coming from a country that does not have a great history in the game.

Coaches were all saying that I was really talented and I had potential, but coming from Serbia, it wasn't easy. The '90s were the hardest years for our country - we went through two wars.

Everyone wants to be happy - people find happiness in different ways. While you want to pursue your career 100 percent, I think it is very hard to give 100 percent in something else. It's important to find this balance, and priorities change throughout life.

I think it's better not to mix professional life and personal life - although it is hard.

Work hard to achieve integrity in your work and your relationships with the people you work with.

Honestly, I've always loved having tag teams since I was little, so I've always kind of been focused on wanting to be a tag team champion.

If you destroyed the underpinnings of this great American sport, you are a hated, ugly, detestable person.

I think more of my tennis is more to do with the mental side of things rather than technique or, you know, tactics or anything like that.