I'd like to do a lot of things - whether in design or architecture or business.

I try to be myself and, of course, be a good role model. I don't really find it hard, but you think about what you do and that other people look up to you.

To be the world No. 1 has always been a dream for me.

Golf can be tougher than tennis when things go wrong, because you can't explain things by saying that your opponent played better than you. It's a cruel sport in that way.

My parents paid me small amounts for cleaning my room or cleaning the dishes and stuff, but I never really had a real job before I started on my professional tennis career.

There are a lot of things to my game I can still improve, but everyone can.

As long as I win I'm doing something right.