To be a tennis champion, you have to be inflexible. You have to be stubborn. You have to be arrogant. You have to be selfish and self-absorbed. Kind of tunnel vision almost.

Being famous before you've formed your personality, before you have that self-esteem, is dangerous.

Not every child is cut out for an individual sport.

Of all my achievements in tennis, I'm probably as proud of my record on clay courts as any of my Wimbledon, U.S. Open or French singles titles.

Don’t let a first-set victory lead into a second-set slump

You've got to take the initiative and play your game. In a decisive set, confidence is the difference.

To be a tennis champion, you have to be inflexible. You have to be stubborn. You have to be arrogant. You have to be selfish and self-absorbed. Kind of tunnel vision almost.