The Boston Celtics' jersey number history is rich and diverse, featuring 68 different numbers worn by over 500 players since the team's inception in 1946. A significant number, 25 jerseys, have been retired to honor the franchise's legends. Among these is the No. 20 jersey worn by Mark Minor, a forward who had a brief stint with the Celtics after being drafted in 1972. His career with Boston was short-lived, playing only four games and averaging 1.3 points and 1.0 rebounds. Despite his limited impact on the court, Minor's connection to the Celtics remains a part of the team's storied jersey legacy.