World Boxing Organization (as they did with several established champions in the lower weight divisions), the WBO sanctioned a fight between two relatively unknown fighters, Francesco Damiani (winner of the super heavyweight silver medal at the 1984 Summer Olympics) and Johnny DuPlooy, to determine the inaugural holder of its own heavyweight title in 1989. All other sanctioning bodies of boxing recognized the then-undefeated Mike Tyson as the undisputed heavyweight champion. Damiani, meanwhile, went on to become the first WBO heavyweight champion. At heavyweight, especially in the United States, the organization initially struggled to gain credibility as a major sanctioning body, with WBO heavyweight
World Heavyweight Championship (Omaha) World Heavyweight Championship (Omaha) The World Heavyweight Championship was a professional wrestling world heavyweight championship sanctioned by a group of National Wrestling Alliance (NWA) promoters led by the NWA affiliate in Omaha, Nebraska, United States. These promoters chose to recognize Édouard Carpentier as NWA World Heavyweight Champion following his disputed win over NWA World Heavyweight Champion Lou Thesz on June 14, 1957. The majority of NWA promoters continued to recognize Thesz as their champion. It was often contested alongside the AWA World Heavyweight Championship, and the two titles were finally unified when AWA champion Verne Gagne defeated Omaha champion Fritz