I'm definitely open to change, but at the same time I am quite stubborn.

I bought a Ferrari...and then sold it after a couple of months.

You can't focus on other people's careers. Everybody is different.

I didn't practise it loads when I was at the academy in Spain, but when I got on the ATP Tour it's something I dedicated a lot of time to.

Tipping generally changes depending on where you are in the world. In Britain you don't always have to tip, but I always make sure I do. I have a lot of respect for waiters and waitresses - it can't be an easy job and they often don't get paid huge amounts, so I think it's important to reward them and let them know if they are giving great service.

I never read. The paper or anything. I watch a lot of movies, and TV series and stuff. But I never, never read.

When I'm training in December, I have to eat like 6,000 calories a day to maintain my weight. It's a bit tiring.