Buster Mathis was an American boxer who competed from 1965 to 1972. He was a top contender throughout his career, beating other top contenders including George Chuvalo and Chuck Wepner. He fought Heavyweight greats such as Muhammad Ali, Joe Frazier, Jerry Quarry and Ron Lyle; he also notably beat Joe Frazier as an amateur to qualify for the Olympics but was later replaced due to a hand injury.

Charles "Chuck" Wepner is an American former professional boxer. He fell just nineteen seconds short of a full fifteen rounds against world heavyweight champion Muhammad Ali in a 1975 championship fight. Wepner also scored notable wins over Randy Neumann and former world heavyweight champion Ernie Terrell. He was also the last man to fight former undisputed world heavyweight champion Sonny Liston.