I coach Aryna Sabalenka. I apply what I learned as a homeless teen to my coaching.

Source: Business Insider

Jason Stacy coaches Aryna Sabalenka, who is playing in the US Open. Courtesy of Jason StacyJason Stacy is a performance coach who helps Sabalenka train physically and mentally. He's also a dad of four, and he aims to teach his kids the same things he coaches.