Alan Minter his winning streak ended when he lost to former world title challenger Ronnie Harris by a knockout in eight. Minter returned to top ten challenger status by upsetting the former World Welterweight and Light Middleweight Champion Emile Griffith with a ten-round decision win in Monte Carlo, but then he lost his European title to Gratien Tonna by a knockout in eight at Milan. He closed '77 with a third 15-round decision win over Finnegan to retain his British title. 1978 was a sad year for Minter, although he won all three of his bouts. On 15 February, at the Muhammad
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