It was a tough year for me, '89, losing two Slam finals and losing another five finals. It wasn't until I won the Masters, or what's now called the ATP Finals, that things changed again. Suddenly I won seven tournaments in 1990 and became No. 1.

Once you succeed in tennis, financially you become quite well off.

The crowds can be very loud, especially when you're playing in the evening.

The serve really is the key to my game.

I'm really trying to focus myself on playing tennis, and I think that's really important.

A good thing is I've been playing tennis I think every day for the last two months. I really haven't had a day off. I've been doing things that I did used to do.

I've been on the tour for many, many years. It's time for me to go now, before it's too late.