The fact is I still have quite a few good years in front of me. I still improve.

The only one I feel pressure from is myself to go and give my all for every match and, obviously, I'm a competitor.

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

There are so many tough opponents out there and tough competitors so I've never liked to look ahead.

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

You can't dwell in your past but move forward, look forward. That's it.

You feel better about yourself when you do something with yourself. You also feel more confident.

Young players are starting to come up as well and they will see me as one of the older, experienced ones.

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.

I don't know, I always get the question 'how do you feel after the game today?' and, of course, if you're winning you feel great and if you lose you don't feel good. I think that's a pretty obvious question.

I don't really spend money like crazy. I buy what I need and what I really want, and if I'm buying expensive things I do think about the purchase many times before I buy it.

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.

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.

One day my dad would say, 'OK, if you want to play tennis I can help you out.' And that's how it started. And I had a goal. I wanted to beat my mom first. And my parents and my brother. And that was the ultimate goal.

I never give up. Doesn't matter what the score is.

I think I'm a really tough player.

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

On grass, it can be the small things that decide a match.

I think that's my personality, to have a good laugh and not to take myself too seriously. And of course I have my things on the court but when I'm off the court I just like to have fun.

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