In Rocky V, Tommy Gunn wins the world title by defeating which boxer?

In Rocky V, Tommy Gunn wins the world title by defeating Union Cane.

Union Cane becomes champion after Rocky Balboa retires and vacates the heavyweight title. Promoter George Washington Duke then guides Tommy Gunn toward a title opportunity, presenting himself as the manager who can deliver the fame and money Tommy wants.

Tommy defeats Cane by first-round knockout and becomes heavyweight champion. The victory is deliberately portrayed as controversial: fans and reporters criticize Tommy for leaving Rocky, crediting Duke instead, and question whether Tommy has truly earned the public’s respect. His reign is treated as that of a “paper champion” because he has not defeated a celebrated former champion like Rocky.

The other options belong to different parts of the series. Clubber Lang is Rocky’s rival in Rocky III, Spider Rico is Rocky’s early opponent, and Mason Dixon is the champion Rocky faces in Rocky Balboa.