Boxing, mixed martial arts and tennis are the hardest sports to train for.

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.

Faith in a prayer-hearing God will make a prayer-loving Christian.

Obviously you try to keep as much of your private life as private as you can.

My fitness trainer's English, my physio's English, some of my friends are English. I don't have a problem with English people at all.

Through crowdfunding anyone can find companies and products.Forming a partnership with innovative British businesses was appealing and the opportunity to go on a journey with these companies as they grow, and hopefully share in their future success, is exciting.

As a child I was a good boy. Even if I wasn't playing tennis I don't think I'd have done things like smoking or getting drunk. I'm lucky I never liked the taste of alcohol - I know, I'm Scottish so what's wrong with me? - but I never even liked the smell of the stuff. It's the same with smoking, it never appealed to me. I guess I missed out on my Kevin-The-Teenager phase.