My aim over the next few months is that I have a lot of points to defend in Miami and Hamburg, after that I can set my sights on No. 1.

The nicer the point, the more -- the better I feel, the more excited I get. But I never play that my opponent looks stupid. I think that is wrong. I have too much respect for every opponent I play.

Tennis can be a very frustrating sport. There is no way around the hard work. Embrace it. You have to put in the hours because there is always something you can improve. [Y]ou have to put in a lot of sacrifice and effort for sometimes little reward but you have to know that, if you put in the right effort, the reward will come.

Mentally, I'm not ever going to go away.

Once you reach a good level in tennis it fills you with a lot of motivation. I hope I can do it for a long time.

For me, I'm in the driver's seat; I'm No. 1 in the world. I've won the last couple of meetings, and I've won the big tournaments lately. Whoever comes, I'll try to beat him. But it's almost up to me to decide who's my rival, isn't it?

I'm at the top of my game so, when I win or lose, I don't freak out...I don't think we can call it a rivalry yet. There's just to many great players around.