When his younger brother Tyrell set his sights on the World Heavyweight Championship, Xavier Biggs put his own boxing aspirations aside to offer ringside assistance. He's remained in the corner of pro and amateur fighters ever since, and has even lent his ring-leading talents to celebrities like Usher Raymond, whom Xavier coached for the upcoming film Hands of Stone.

At Decatur Boxing Club, he brings that same punching prowess to beginner classes. In those sessions, he combine intensive cardio workouts with fundamentals, such as striking, bobbing and weaving, and furiously shuffling feet to create powerful static shocks. He imbues more seasoned students with advanced footwork and fighting strategies that they can eventually test during sparring sessions in the ring. For kids, Xavier incorporates boxing moves into fun exercises and peppers his teaching with stories about legendary boxers.