Most sports rule changes are for the betterment of their respective games. They clear up confusion, uphold the integrity of the game, or protect their players. Every once in a while though, rules are put in place because a player is just too dominant.
After the 1966-67 season, the NCAA outlawed the dunk. As a sophomore, Lew Alcindor averaged 29 points per game, leading his UCLA Bruins to a national championship with a 30-0 record. The rule targeted the 7-foot-1 Alcindor, who could easily “stuff” the ball in the basket when he got deep in the key. The rule might have curbed his production a bit as Alcindor averaged about 25 points per game and his field goal percentage dipped slightly in his junior and senior seasons. But the Bruins still went 58-2 in his final two years and and romped to a national title in each.
Alcindor would change his name to Kareem Abdul-Jabbar shortly after he turned pro. But the rule carrying his name wasn't rescinded until 1976.