Hard courts are very negative for the body. I know the sport is a business and creating these courts is easier than clay or grass, but I am 100 per cent sure it is wrong.

Some people may learn something from the way I play tennis. But there are also players who are better than me in certain techniques.

The young athletes are supposed to mature, to improve their personality.

If you are playing bad you are going to lose here, on clay, on ice, or on the beach.

I have no sense of humor about losing

I am decidedly unfriendly during a golf game, from the first hole to the last.

Since I was a kid, I've wanted to do sports for a living. In the beginning, I played a lot of soccer, but in the end I chose tennis. I love sports in general ... But tennis is my passion.