Joe Frazier vs. George Foreman and again won by technical knockout, this time in the fifth round. A year later, Foreman lost to Jimmy Young in San Juan, Puerto Rico in a fight to determine the No. 1 contender, and it was after this fight that Foreman had his near-death experience and conversion. He subsequently retired and became a preacher but made a comeback after a decade away from the ring, eventually defeating Michael Moorer to become the oldest heavyweight champion of all time in 1994 at almost 46 years old. Rest Joe Frazier vs. George Foreman Joe Frazier vs. George Foreman, billed as "The
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