Heavyweight unification series Heavyweight unification series The heavyweight unification series, also known as the Heavyweight World Series, was a sequence of professional boxing matches held in 1986 and 1987 to crown an undisputed champion of the heavyweight class. The series was produced by HBO Sports and promoted by Don King. It ended with Mike Tyson as undisputed champion, holding the championship belts of the International Boxing Federation, World Boxing Association, and World Boxing Council. Prior to the series, the last undisputed heavyweight champion had been Leon Spinks, who won the championship in his 1978 victory over Muhammad Ali. Spinks had been stripped of
Boxing in Canada Boxing in Canada The sport of boxing has been practised in Canada since before Canadian Confederation in 1867. Boxing was illegal in Canada during the bare-knuckle era but fights took place in remote areas and the last of them was in Halifax, Nova Scotia in 1901. Tommy Burns from Normanby Township near Hanover, was the first Canadian to win a heavyweight title, becoming the world heavyweight champion in 1906 and defending the title ten times until he was knocked out by Jack Johnson in 1908. On May 10, 2014, Bermane Stiverne won the vacant WBC World Heavyweight Championship after a