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
Billy Gibson (boxing) Billy Gibson (boxing) William J. Gibson (1876–1947) was a boxing promoter and manager for Benny Leonard (a former Lightweight champion), Gene Tunney (a former Heavyweight champion), Paulino Uzcudun, and featherweight Louis Kaplan. He was also the owner of the short-lived New York Brickley Giants of the National Football League. Gibson began his career in boxing as a promoter in Bronx. He teamed up with Leonard in 1914 and was his manager up until the 1917 lightweight championship. In 1923, Gibson became the manager of Tunney, who would go on to win the heavyweight title. Gibson retired in 1928. Gibson also