I don't focus on what I'm up against. I focus on my goals and I try to ignore the rest.

We've been training and playing full-time since we were 18 and 19. So after tennis, we'll be excited to see what it's like to have more free time.

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.

Whoever is across the net, I want to win. Whoever that person is, that's the day I want to win.

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.

The principle of the design - the harmony, rhythm and balance are all the same with interior and fashion design.

You can never get complacent because a loss is always around the corner.