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
NWA World Historic Light Heavyweight Championship become the third ever NWA World Historic Light Heavyweight Champion. Bucanero became the first champion to have not also held the previous NWA World Light Heavyweight Championship. Due to the championship being vacated on February 23, 2015, CMLL held a tournament for the vacant light heavyweight championship starting March 1, 2015. La Sombra and Rey Bucanero outlasted Atlantis, Blue Panther, Dragón Rojo Jr., Ephesto, Misterioso Jr., Mr. Águila, Niebla Roja, Stuka Jr., Valiente and Último Guerrero in a 12-man "torneo cibernetico" elimination match. On March 8, Bucanero defeated La Sombra to win the tournament and the vacant championship. NWA World