I was labeled at a young age - Miss Unemotional, Miss Cool, and that would carry over to my press conferences.

There were times when deep down inside I wanted to win so badly I could actually will it to happen. I think most of my career has been based on desire.

Ninety percent of my game is mental. It's my concentration that has gotten me this far. I won't even call a friend on the day of a match. I'm scared of disrupting my concentration. I don't allow any competition with tennis.

I always looked ahead.

I've had a lot of fear in my life, from fear of flying to fear of making a speech in front of a lot of people.

My first U.S. Open I think was just very special for me because that was sort of the beginning of what was a 'Cinderella' story for me.

You've got to take the initiative and play your game. In a decisive set, confidence is the difference.