I'd probably start charging for medical timeouts. I think we'd all see who really uses them and who doesn't.

When I need to push myself, I think of all those nicely polished trophies waiting to be lifted up by the winner - and how that winner might be me.

When you look good, you feel good. Confidence with what you're wearing is very important. If you feel good, you will always perform your best without worrying about anything.

I don't need many things. I don't need glamour and attention to be happy. I'm very happy being settled and working my butt off and trying to win grand slams.

I love where I'm from. I don't live there because of the circumstances, but all my family is there. It's what's inside, it's not what's outside that determines the culture and the feeling.

When you're going through tough moments, you never know when you're going to have good moments.

Music is a part of my life all the time - on the plane, before matches, driving out to the court.