Luck has nothing to do with it.

We all know who the real number one is. Quite frankly, I'm the best in the world.

I've never felt invincible. I've never used that word to describe me ever.

I'm a high-performance athlete: I'm running, I'm sprinting, I'm sliding, I'm doing pretty much everything and the last thing I want to worry about is my chest. I want to just worry about playing the sport at the highest level that I can.

If anything, we haven't changed much since we [with Venuse Williams] were kids. We really are the same people.

Honestly, I could get in a car accident today and never play tennis again, and then I wouldn't have anything to fall back on. But fortunately enough, I do.

All I want is to have fun in what I'm doing every day. I don't want to break records. To become the greatest player ever could take me like...10 more years and I don't think I'll still be playing at 31.