I'm not a guy who needs to read motivation books.

Everyone has to call 'time' at some stage.

Oh, I get pretty fired up on the court. I try to play with a lot of emotion, especially when I'm playing in front of a large crowd. I want to go out and do my best, and to do that, I have to play with the most energy possible.

Grand Slams are different. If you can get through a few matches, the draw opens up and you get confident. You just need a little bit of luck early, you get through those opening matches and you never know what could happen.

I've probably put up with more criticism than a lot of people out there. At the end of the day, you block out everything, especially with your personal life.

I'm one injury away from hanging up the racket at any time.

When I was a kid in Adelaide, I dreamed of becoming No. 1 in the world, winning a grand slam and the Davis Cup for Australia.