"He is exaggerating, for sure—130 mph approaches the high end for the likes of Sampras."

“I started for health reasons. I was diagnosed with an autoimmune disease, and I wanted to maintain my performance on the court. Once I started I fell in love with the concept of fueling your body in the best way possible. Not only does it help me on the court, but I feel like I’m doing the right thing for me. … I literally couldn’t play tennis anymore, so it really changed my life. Because it was starting to take away what I loved, I had to make some changes, I had to change my life. Thankfully, I was able to find something that helped me get back to doing what I loved. … It changed the pace that I live at. It changed everything.”