If you want to belong to the best, you need good technique and, perhaps even more importantly, a good eye. If you see the ball sooner, you have more time to think about how and where to return it.

Always I believe that I can play better. But I am happy.

I have always tried to avoid regrets. Could I have done differently some things in my career? Maybe.

I'm really, really emotional.

Is always the motivation to play better and better. But I think we are in a very good way to keep winning matches. That's most important thing for me.

Some people get very confused about my game. They think it's better if the court is slow, because I have a good defence. But the faster it is, the better for me. My spin is more painful for my opponents, my aggressive game works better.

I was passionate about soccer. I still am. Odd, though - playing soccer always made me much more anxious than playing tennis. On soccer days, I'd be out of bed by 6 in the morning, all nervous. But I was always calm when it was time for a tennis match. I still don't know why.