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
Gunner Moir Gunner Moir James Moir (17 April 1879 – 12 June 1939), better known as Gunner Moir and sometimes as "Ex Gunner" James Moir, was an English heavyweight boxer. He was British champion from 1906 to 1909 and challenged Tommy Burns for the world title. After retiring from boxing he took up acting, appearing in several films in the 1930s. Born in Lambeth, London, Moir began his boxing career whilst serving in the British Army in India, and when he returned to England in 1903 he was the Heavyweight Champion of the British Army in India. His first recorded professional fight