No, I'm not (disappointed). There's no reason to be because I'm on an incredible run. You always expect a loss once in a while. So when it happens, why be disappointed if I win over 90% of my matches.

I have a great record against anybody right now, so it doesn't really matter who I play in the final. I'll be in there as the big favorite. But I play my best in the finals, in the important matches. That's why I'm number one. There's no secret...I'm not overconfident, but very confident.

My heart is in South Africa, through my mum. My mum being from here, me spending a lot of time here as well, I feel most connected to this part of the world.

You can be stubborn and successful or you can give it up a bit and change things around. For me it's important to have a bit of both.

Confidence? Are you kidding me? I mean, please. Look, some players grow up and play like that. I remember losing junior matches. Just being down 5-2 in the third, and they all just start slapping shots.

Simple version for me is, umm, started bad and finished bad basically.

The week before the (US Open) I gave a few interviews for CNN, USA Network, New York Times, USA Today and Sports Illustrated which had been arranged beforehand. The reason for giving these interviews is not only because working with the media is just part of the job, it is much more my desire to contribute to the promotion of tennis in the U.S.