It's thrilling and it's an honor to be part of something bigger than your own self.

It's a great feeling to have accomplished what I have, but I want to do more.

My goal is always the same: to keep the other player from ever scoring a point. That doesn't always happen, but that's what I try for.

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've learned about employee relations; I've learned about following your instinct. One of the biggest mistakes you can follow is not following your instincts, you know? A lot of times your instincts will tell you what to do if you have a good one. Now, if your instincts are terrible, then you ask for advice. But if you have good instincts, you definitely have to follow them, or else you regret them.

Tennis is a huge part of my life, but I don't base my self-value or my self-worth or the quality of my life on my results on the court.

Most of us have grown up, you know, I think there are very few people who have grown up in a home that was, like, super normal. You know, we all have dispositions because maybe you didn't have a mom or you didn't have a dad, maybe your mom died early or maybe mom and dad argued or they got a divorce or who knows? You have issues that maybe you've started younger or maybe you have your own issues because you have them.