I don't believe in playing hurt, in taking injections to cover the pain.
You have to want to play it all day, every day to get to the top.
As you know, I was one of the original grunters. But Jimmy Connors used to grunt way before I was born. I never knew I was grunting, it was just part of my strokes.
I did realize more than ever, after the stabbing, that tennis is a business - a tough business.
I am lucky to have advisers whom I trust.
People think I must have been so talented at an early age, but I don't know - was it talent or hard work? Who knows?