At the Capital Combat event in May, Sting was accosted by the Four Horsemen and thrown into a metal cage at ringside. In a promotional crossover, Sting was rescued by his buddy RoboCop. After Borden's recovery, Sting finally defeated Flair for the NWA World Heavyweight Championship on July 7, 1990, at The Great American Bash. Sting went on to feud with title contenders Flair and Sid Vicious. Vicious appeared to defeat Sting in a title match at the 1990 Halloween Havoc, but the "Sting" that Vicious pinned was revealed to be an impostor played by Horseman Barry Windham. The real Sting appeared soon after and pinned Vicious to retain his title after the match was restarted.