I had moments of my actions and words not reflecting who it is I am - if that defines a punk, then yes, absolutely.

You have to have the mentality of executing your game when you don't feel like there's a lot of hope. I think the best feeling is when somebody pushes you to the limit and you dig down a little bit extra. By the same token, you also need a little luck. Sometimes they come together.

Success doesn't always come in the form of a trophy. Keep striving for success.

I've been criticized for not having perspective in the past and I thought that of myself many times but not there.

Tennis was always sort of a - a learning. It was a vehicle for me to discover a lot about myself. And the things that I sort of discovered at times I not only didn't want to see it for myself but I certainly didn't want millions of people to see it.

It has meant a lot to me to challenge the best players in the world and to beat them. And it means a lot to me to be out here and fighting for the title and, you know, it hurts not to win it.

If I've learned nothing else, it's that time and practice equal achievement.