I spent a whole year when I was injured just trying to get my arm back to the point where I could hit a tennis ball for more than 30 minutes a day. I'd hit for 15 minutes and it would feel as if my arm was going to fall off.

Music is a part of my life all the time - on the plane, before matches, driving out to the court.

When you come off the court and you feel like you were losing the whole match, and all of a sudden you pulled it out, you know, it's those moments that you feel you've trained for and you work hard for. Just lucky to get through.

I personally love Jennifer Lawrence. She's an amazing actress, but so young and fresh and youthful.

When you travel so many weeks a year, it's always nice to have a home-cooked meal.

People always ask about young people like me being forced into things. I play tennis because I love it. I think Russians might be tougher than other people. When I arrived in America I was young, but I already knew what I wanted. I think that when you start from nothing, when you come from nothing, it makes you hungry. I am proud of where I came from and I know what I want. I want to win.

I help design my own tennis clothes.