There was kind of a code that you had as an Australian that you never left the court losing unless you had blood all over you. That's the sort of toughness you need to compete on the world stage and I feel that our kids today just don't have it.

By the time I got to the hospital, I certainly realised that I had a problem because I couldn't write or print at that time, which lasted luckily only about four months. I'd gone numb here and on my tongue and the right foot a little bit.

The strongest and most dangerous enemy you will ever face is a negative attitude. Learn to recognize when it is trying to invade your body and mind, then simply refuse it entry.

I was a pretty feisty young kid.

Your game is only as good as your second serve

That match was late evening and I had the experience of the electricity of the Centre Court because it was packed, a full house for the whole match. It had been a great year for me, first time there and I had the full taste of Wimbledon.

So there was a fire inside me. And that fire inside you, it can be turned into a negative form or a positive form. And I gradually realised that I had this fire and that it had to be used in a positive way.