I'm a very positive thinker, and I think that is what helps me the most in difficult moments.

The serve, I think, is the most difficult, you know, in terms of coordination, because you got the two arms going, and you got to toss it up at the right time so.

When I think of the Olympics I only think of good things. I think of what a great event it is and what it has done for me and my career, and changed my personal life, too.

I am now the Wimbledon champion, and I think that gives me even more confidence coming to the Olympics. And maybe in some ways, it maybe takes some pressure off the Olympics, because I already did win at Wimbledon this year.

He's improved incredibly. I think we're all surprised he got so far because there's other very talented youngsters who I thought would make the break before him, but he proved us all wrong.

It's always a strange feeling when that happens. Four sets says it all. It was difficult.