I don't go thinking I'm going to lose. I never go into a tournament thinking that. I'll do the best that I can.

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

Hopefully, we can build a rivalry and we'll be able to do this a lot. Make a legacy, then retire champions.

We're going in really fresh. We're going to have fresh legs and bodies, we're going to be able to stay the distance, and that's our goal.

With a defeat, when you lose, you get up, you make it better, you try again. That's what I do in life, when I get down, when I get sick, I don't want to just stop. I keep going and I try to do more. Everyone always says never give up but you really have to take that to heart and really do never definitely give up. Keep trying.

People see me on the court only as a superhero, grunting and winning. They think you're a robot, and I'm not.

My coach has said to me, "When you win a match or a tournament, you don't even think about it - the very next minute you're like".