I'm incredibly fortunate and it's important to me to make sure that I give back where I can.

Not to be occupied with your sin, but to be occupied with God brings deliverance from self.

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

I've been asked a lot lately if tennis is clean or not. I don't know any more how you judge whether a sport is clean. If one in 100 players is doping, in my eyes that isn't a clean sport.

We Scots have a fierce pride in the things we do that others can never appreciate. I am the British No. 1, but I would prefer to be the British No. 1 from Scotland every time.

When I'm frustrated that I'm not doing well in a tournament I cut my own hair, just lop it all off. I've probably made a right mess of it, but luckily I wear a cap when I play.

I've always been pretty careful at keeping track of my spending, so using my debit card is often the easiest way of doing that.