Chiropractic gives me the flexibility I need to keep in the game.

I don't want to give anyone an edge in my mind. Every time I walk out on the court, I have to feel I'm the best so I can compete well. A lot of times, my chief rival is just me.

I always like to win. But I'm the big sister. I want to make sure she has everything, even if I don't have anything. It's hard. I love her too much. That's what counts.

There were a lot of people shouting out. I know it's not proper tennis etiquette, but this is the first time I've ever played here that the crowd has been behind me like that. Today I felt American, you know, for the first time at the U.S. Open. So I've waited my whole career to have this moment and here it is. ... It was great. It was awesome. It was like winning gold.

It's easy to stand back, but to move forward and take a chance, that takes a little more guts, a little more courage.

It's every Williams for themself.

I tend to be slim and you know, I actually can lose weight quicker than I can gain it.