I used to do a lot of video analysis early on, but more for pleasure and looking at my own technique.

I can walk around screaming, 'I have 17 Grand Slams. I have the record here or there.' When you can play for history and you do it, that's what is so really cool, is that you can then be compared to other greats or you've passed another great, even though it doesn't mean you're better than him. But it's just like that moment you've gone into the unknown where nobody else has ever been before.

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.

I'm shocked every time that I've reached so many finals or won against so many players or whatever record it is. It strikes me and makes me obviously very happy and very proud that I've been able to do it for so many years at the highest of levels.

The one thing you can do for sure is push the luck on your side

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 am a very positive thinker, and I think that is what helps me the most in difficult moments.