The main event was the 1991 Royal Rumble match. Featured matches on the undercard were The Ultimate Warrior versus Sgt. Slaughter for the WWE Championship, "The Million Dollar Man" Ted DiBiase ...

The '91 Royal Rumble was the ... previously competing in the Rumble while being the WWF Champ in 1990. Having dethroned Hogan at WrestleMania VI, Ultimate Warrior's 293-day reign as WWF Champion ...

Ultimate Warrior's biggest victory ... defended the championship before losing to Sgt. Slaughter at Royal Rumble in 1991. The intense Superstar then entered into a rivalry with "Macho Man ...