When I first started really playing, in '98, I was super excited to see all the people I grew up watching. ... I loved Monica Seles, Steffi Graf, and Pete Sampras.

I'm so frugal, you wouldn't believe it.

Tennis just a game, family is forever.

We're sisters, we're roommates, we're all that.

All I want is to have fun in what I'm doing every day. I don't want to break records. To become the greatest player ever could take me like...10 more years and I don't think I'll still be playing at 31.

You just have to prove to yourself that you can go out there and be the best that you can be and not prove anything to anyone.

I think a smile can make your whole body. Models, they look fabulous, but they don't smile, and they look so mad.