I'll never have a tattoo - I just don't like them, and when you're old they can look a disaster. As for piercings, I don't like them on men.

Something that works for one person could be a disadvantage to another.

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.

It's important for the young players to practice other ball games as well, basketball or table tennis. On the tennis court, you can improve your eye through a kind of overexertion.

I don't think about how going to be the match. I think about try to do the right things to win. I don't think about how easy can say or how tough can say. I go on court. I try my best.

I've stayed calm when I'm winning and I've stayed calm when I've lost. Tennis is a sport where we have a lot of tournaments every week, so you can't celebrate a lot when you have big victories, and you cannot get too down when you're losing, as in a few days you'll be in the next tournament and you'll have to be ready with that.

I always work with a goal - and the goal is to improve as a player and a person. That, finally, is the most important thing of all.