I got a hundred bucks says my baby beats Pete's baby. I just think genetics are in my favour.

I've been criticized for not having perspective in the past and I thought that of myself many times but not there.

Success doesn't always come in the form of a trophy. Keep striving for success.

If you're ranked number one in the world it's because you've earned it, and I think the only way to really get there is to have that ability and to have it nurtured in a very competitive environment at an early age.

First of all, in any sport where you can measure distance, height speed and all of that, you see how athletes have changed their sport and made it better. I believe, with every generation, the sport has improved. Certainly, in the men's game, that has been the case. I think that I played Pete [Sampras] at his best, I played Roger [Federer] at his best.. I believe wholeheartedly that Roger and [Rafael] Nadal have pushed the game much further than myself or Pete ever did. Their options on the tennis court are considerably more than ours.

He thinks it's his day, and when you think it's your day, it usually is.

Tennis uses the language of life. Advantage, service, fault, break, love - the basic elements of tennis are those of everyday existence, because every match is a life in miniature.