A lot of times when you play... you get this adrenalin that blocks pain.

I guess tennis is my main art, but fashion is definitely very close.

A lot of people say, "Oh, I get this high from working out." I've never felt that, maybe because I've worked out for so long it's just a norm for me to push super, super hard. I don't feel the euphoria. But at the end, when it's all done, I feel euphoric. I'm like, "Yes, the work is done." You just feel like a glowing feeling inside.

I will always be the older sister. That's never going to change.

Tennis is mostly mental. Of course, you must have a lot of physical skill, but you can't play tennis well and not be a good thinker. You win or lose the match before you even go out there.

Sometimes, when there's a video montage. I'm thinking, 'That's my life. Oh, my God, I did that.' Yeah, it's amazing.

I think I've been fortunate to be at the top of the game and in the media for years, and a lot of times, people want to be your friend when you're on the top. You know, there have been times when I've been injured and I never got a phone call. So that's the way it is.