Tennis has to become everything to you if you're going to make it to the top. You have to live it.
I have this terrible dark side to my personality, which playing tennis keeps at bay
That's the key to success, isn't it? It has to be fun.
You have to want to play it all day, every day to get to the top.
I think for me, food was a way for me to deal with emotional trouble.
I never really did Christmas before. Christmas Day? I mean - what's that? What's it all about? I was always flying on Christmas Day