I had to pay an incredible amount to get insured on it and, after a couple of weeks of driving it around, I realised it wasn't quite my style. I'm not flash by any means but a bright red Ferrari is a definite head-turner and I hated that. It was also incredibly impractical, particularly when it came to finding space for a friend or for my tennis bag, so I decided to sell it after a few months.

I'm not allowed to make a joke. It is a bit unfair how I'm treated. I thought it was a joke. I got calls and messages. I would rather not to have to worry about things like that. It is disappointing.

I used to think that losing made you more hungry and determined but after my success at the Olympics and the U.S. Open I realise that winning is the biggest motivation.

Davis Cup, you know, does take a lot out of you over the weekend. It's tough, especially if you play all three days.

For me, by far, the Olympics is the biggest sporting event in the world.

Everything in tennis is so neat and nice but boxing has sport down to its essence; it is very pure and I like that.

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.