My biggest problem will be lack of match toughness but I am a positive, optimistic person.

If I stay healthy and I'm playing good tennis I have as good a chance as anybody.

The downside isn't really injury, fear of injury or the process of fighting back from injury. The downside, the very worst thing in the world, is surgery.

It is a big adjustment but I've always loved that old saying of Jack Nicklaus: 'I retired from golf to go to work.' That sums it up for me.

It's about you. If you win, it's you; if you lose, it's you. Black and white. Nowhere to hide.

You can't really describe how difficult it is to deal with. It is any athlete's worst nightmare to be accused of cheating by taking drugs. It really is very difficult to put into words how it makes you feel.

You do it for the highs, when you're totally engrossed and everything's flowing and whatever you want, you get. It's like magic. That's why you play the game. That's what it's for. That's why you work.