Shannon Briggs Briggs began his career in 1992 and was undefeated in his first 25 fights, and was trained by Teddy Atlas. He suffered his first loss when he was knocked out in three rounds by undefeated Darroll Wilson in Atlantic City, New Jersey, in 1996. The fight was broadcast on HBO and was a showcase of young heavyweight fighters. Briggs fought against lineal champion George Foreman on November 22, 1997 at the Trump Taj Majal Hotel & Casino in Atlantic City, New Jersey. Coming into the fight, Briggs sported a 29–1 record with 24 of his wins coming by way of
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