For the younger sisters, we always look up to the older sisters because they're always ahead of us and they always win.

We all know who the real number one is. Quite frankly, I'm the best in the world.

I'm an unbelievable designer. I don't know how I know and just do these things. I just start sketching and then I just know the colors and I always know the forecast. I know green and purple are going to be hot. I was born to be a designer. I worked hard to be a tennis player, I don't work hard to be a designer.

If anything, we haven't changed much since we [with Venuse Williams] were kids. We really are the same people.

I need to be at my peak and my best is holding up the trophy. Anything less I wouldn't be really excited about. So that's all I can focus on.

I don't have a good British accent.

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