Tennis is mostly mental. Of course, you must have a lot of physical skill, but you can't play tennis well and not be a good thinker. You win or lose the match before you even go out there.

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

I remember watching the Olympics at home as a kid. It was one my Dad's dreams to win an Olympic medal.

I don't have time to be negative.

Rain is good for me. I feel like I achieve clarity actually when it rains. The longer I have to sit and wait, the clearer my game becomes to me.

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.

The naysayers, they don't mean a thing.