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.

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

I am Scottish. I am also British.

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.

The one thing He commands us as His branches is to bear fruit. Let us live to bless others, to testify of the life and the love there is in Jesus. Let us in faith and obedience give our whole life to that which Jesus chose us for and appointed us to-fruit-bearing.

It's safe to say that the value of the property had shot up considerably and in the end I made a pretty satisfying profit.

I'm a global ambassador for the World Wildlife Fund and United for Wildlife and I am also a Unicef UK ambassador. It's important to me to support charities. I never want to take my wealth for granted.