We're all conditioned that we shouldn't like our brothers and sisters, that we should be angry and fight. But that's abnormal. A lot of people think that the way Serena and I are with one another is weird. It's not.

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

I wear a lot of tight dresses, so I'm like, 'I need to do my sit-ups!'

Serena and I have done some great career planning, and we're playing really at the peak of our tennis right now. I think tennis has been a sport where people play this insane schedule from 14 years old, so of course at 26, it's over. We've really paced ourselves.

Sjogren's is something you live with your whole life. The good news for me is now I know what's happening after spending years not knowing... I feel like I can get better and move on.

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.

My motto is: I'm alive, so that means I can do anything.