Relationships are give-and-take, and when you're a tennis player, you're certainly not giving. You have to be self-absorbed. It has to be about you.

Single-mindedness. I hate to say it because I don't think it's the best thing for developing a person, but the single-mindedness - just concentrating in the one area - that's what it takes to be a champion.

I'm not getting within 20 feet of a married man ever again - not even talking to one!

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.

I've had a lot of fear in my life, from fear of flying to fear of making a speech in front of a lot of people.

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

I always looked ahead.