In 1984, a heated rivalry between Julius "Dr. J" Erving and Larry Bird escalated into a famous fight during a 76ers vs. Celtics game. Billy Cunningham, head coach of the Sixers, defended Erving’s ...

No. 5 on the list is Billy Cunningham, who excelled as a player and coach. Why he’s important: Won championships with the Sixers as a player (in 1966-67) and a coach (in 1982-83).