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
Boxing in the 1940s famous bouts towards the middle of the decade, Jack and Montgomery fought four times, and Rocky Graziano and Tony Zale starred in what boxing critics have often called one of the fiercest rivalries in boxing history. The heavyweight division was dominated by Louis, the only man in history to be world champion throughout every year of a decade. He became world champion in 1937 and kept the title until 1949. LaMotta lost a highly controversial fight to Billy Fox in 1947. LaMotta later testified he threw the fight to earn a title shot at world middleweight champion Marcel Cerdan, (note