I have two lives, and all the problems I might have, I feel like I drop them once I step on to the match court.

I can't stay No. 1 for fifty years, you know. We'll see what happens.

Having twin girls is a life changer - that's for sure. But I like getting up and changing diapers. It's the things you do.

I always had the dream that, once I became No 1 in the world, that if I had a child I hoped I would have it early enough so the child can see me playing.

I'm playing great tennis. I'm enjoying the tour, having fun with the fans off the court. I'm loving it now.

Seriously. I'm not playing to prove anything to journalists. I'm playing for myself, for my fans,to make people happy.

When they [court announcers] say, 'This is the world No. 2,' it just doesn't sound right to me because either I'm No. 1 or I'm a grand slam champion. I'm not world No. 2. I just don't like the ring of it when I'm introduced on court because I've been up there for so, so long.