I'm a happy man, because I am successful in what I do, of course; but what makes me most happy is I have people around me that I love and who love me back. This, for me, is the most important thing. Nobody likes to be alone.

The confidence is there, the game is there, but physically you can't fight nature sometimes. You can't do much about it.

When the last point is done, we are humans. Give your opponent a hug and say, ‘great fight,’ and that’s all.

I cannot guarantee anything.

In order to stay where I am - and I want to do that - I have to stay dedicated as well as I have been before I became No. 1.

Mostly the problems when I was down were caused by myself. There were times when I was not responsible enough or decisive enough.

We only have one life and one body to care of, and we better do it right. You never know what tomorrow may bring and so we better live this life the best we can and be grateful for everything we have.