People ask me where I get my fighting qualities from, and I have to say Serena.

I think nowadays it's so easy as an athlete to become a statistic whether or not you lose everything or having trouble or whatever it may be.

At the end of the day, you just have to focus on winning. No one can take a win away from you. That's what I focused on. Life is not fair, so I don't go out there expecting it to be. I don't think any of us should go out expecting life to be fair. I think that's expecting too much, and I remind myself of that sometimes. You can get on with your life after that.

For years I felt that I didn't have enough stamina and then, four years ago, I felt like I was not getting enough air but I was diagnosed with exercise-induced asthma. The medicine for asthma never worked.

I have a lot of dreams, and most of them come true these days.

Some people say I have attitude - maybe I do... but I think you have to. You have to believe in yourself when no one else does - that makes you a winner right there.

Id like to imagine that in order to beat me a person would have to play almost perfect tennis.