Mike Tyson vs. Kevin McBride slip rather than a knockdown. Tyson would have won the round, but the two-point deduction gave McBride a 9–8 win on the scorecards. Though Tyson still led on two of the judge's scorecards, Tyson shockingly quit on his stool before the seventh round began, automatically giving McBride the victory by technical knockout. Mike Tyson vs. Kevin McBride Mike Tyson vs. Kevin McBride was a professional boxing match contested on June 11, 2005. Although the former heavyweight champion appeared to be ahead on points on the judges' scorecards through six rounds, he failed to answer the bell for the 7th round
Heavyweight unification series Following the unification series, there were ongoing calls for Tyson and Spinks to fight, to erase any doubt about the identity of the "true" champion. In June 1988, the two champions faced off, and Tyson knocked out Spinks in 91 seconds. Tyson held on to his titles until February 1990, when he was knocked out by Buster Douglas. The titles remained unified until December 1992, when undisputed champion Riddick Bowe relinquished his WBC title. 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