By Kevin O'Connor • 1 min
Jayson Tatum has taken the leap into superstardom in his third season with the Boston Celtics. How did the 22-year-old go from a young, promising talent to an All-Star reserve? The Ringer’s Kevin O’Connor breaks it all down by analyzing his offensive and defensive adjustments, while also talking to trainer Drew Hanlen, Celtics general manager Danny Ainge, and even Jayson Tatum himself.