It becomes tricky, and you start to think about the cramps rather than just actually what you're trying to do on the court, which is obviously win the match.

I wouldn't say I'm a spender in the sense that I'm going out on huge spending sprees. However, to be able to function at the top of your game on the professional tennis circuit often requires an element of frequent spending.

The man who mobilizes the Christian church to pray will make the greatest contribution to world evangelization in history.

I don't play any tournaments to come second best.

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

This will be my first Grand Slam final without Roger Federer or Novak Djokovic on the other side of the net, but I don't think being the more experienced player will make much difference to my approach.

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