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

You live during the match, and you have strong emotions, but you don't want to get too overexcited. My body's totally flat now. I cannot move anymore. I'm totally exhausted, just because of the tension out there.

I think it's very hard for coaches to work with me. They'll no doubt have a good CV afterwards, but at the same time they're under a lot of pressure.

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 am a sucker for those old traditional places, and Rome is as good as it gets, particularly when you throw in Italian food.

I have a very strong opinion. I'm absolutely against it. I'm against the challenge system. I'm for the way it is right now. Don't change that.

Once you reach a good level in tennis it fills you with a lot of motivation. I hope I can do it for a long time.