When you do something best in life, you don't really want to give that up - and for me it's tennis.

Mentally, I'm not ever going to go away.

I'm at the top of my game so, when I win or lose, I don't freak out...I don't think we can call it a rivalry yet. There's just to many great players around.

One of my big, big strengths I think early on in my career was that I could learn very quickly. You wouldn't have to tell me the things 10 times or 50 times until I would understand them. You would only have to tell me two or three times.

I have a very strong opinion. I'm absolutely against it. I'm against the challenge system. I'm for the way it is right now. Don't change that.

The one thing you can do for sure is push the luck on your side

You have to believe in the long term plan you have but you need the short term goals to motivate and inspire you.