People think I am unemotional because my voice is flat and a bit boring. It is unfortunate but it is just the way it is. I've tried to change it but it doesn't seem to make a difference. The truth is, I have lots of emotions inside. I cried after the semi-final at Wimbledon [2012] because I was proud to reach the final and I knew how much it meant to the country. I cried after the [losing] final [to Federer], too, for different reasons. I felt I had let people down. I think people warmed to that. They could see how much it hurt.

It's not the end of the world to lose.

Time spent in prayer will yield more than that given to work. Prayer alone gives work its worth and its success. Prayer opens the way for God Himself to do His work in us and through us. Let our chief work as God's messengers be intercession; in it we secure the presence and power of God to go with us.

I'm definitely open to change, but at the same time I am quite stubborn.

Through His Spirit, the Spirit of prayer, our life may be one of continual prayer. The Spirit of prayer will help you become an intercessor, asking great things of God for those around you.

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.

There's no doubt Milos Raonic will be a very tough final opponent, after all he beat [ Roger] Federer on Centre Court to get there.