Tony Tubbs (born February 15, 1958 in Cincinnati, Ohio) is a retired professional heavyweight boxer who was the WBA Heavyweight Champion of the world from 1985 to 1986.

Tubbs compiled an amateur record of 240-13. In 1978, he lost in the quarterfinals of the World Championships to the great Cuban Teofilo Stevenson. The following year, Tubbs won the National AAU title and the World Cup Championships.

In February 1980, the Muhammad Ali Amateur Boxing Club competed against the Joe Frazier Amateur Boxing Club in Houston, Texas. Tubbs, boxing for the Ali team, defeated Marvis Frazier (son of Joe Frazier) by decision, avenging an earlier defeat.

Tubbs also was a sparring partner for Ali. He helped Ali prepare for his rematch with Leon Spinks, which Ali won by a unanimous decision to regain the World Heavyweight Championship.

Tubbs, nicknamed TNT, made his professional debut on June 14, 1980, with a first-round knockout of Bruce Scott.

After 11 fights, he fought fellow undefeated prospect Clarence Hill on August 7, 1982 and won by a ten-round unanimous decision. After outpointing slick stylist Jimmy Young (who had defeated George Foreman) on April 10, 1983, he was signed by Don King and began rising quickly up the rankings while appearing on several King undercards.

Michael Gerard "Mike" Tyson (born June 30, 1966) is a retired American professional boxer. Tyson is a former undisputed heavyweight champion of the world and holds the record as the youngest boxer to win the WBC, WBA and IBF heavyweight titles at 20 years, 4 months and 22 days old. Tyson won his first 19 professional bouts by knockout, with 12 of them occurring in the first round. He won the WBC title in 1986 after defeating Trevor Berbick by a TKO in the second round. In 1987, Tyson added the WBA and IBF titles after defeating James Smith and Tony Tucker. He was the first heavyweight boxer to simultaneously hold the WBA, WBC and IBF titles, and the only heavyweight to individually unify them.

In 1988, Tyson became the lineal champion when he knocked out Michael Spinks in the first 91 seconds of the fight. Tyson successfully defended the world heavyweight championship nine times, including victories over Larry Holmes and Frank Bruno. Tyson lost his titles to 42-to-1 underdog James "Buster" Douglas on February 11, 1990, in Tokyo, Japan, by a knockout in round 10. Tyson continued in his quest to regain the titles, defeating Donovan Ruddock twice in 1991. Tyson was then scheduled to take on the undisputed heavyweight champion Evander Holyfield but pulled out due to injury.

"Terrible" Tim Witherspoon (born December 27, 1957) is a retired American boxer who was twice world heavyweight champion.

Witherspoon had eight and a half amateur bouts, losing one to Marvis Frazier on decision after getting knocked down.

Making his professional debut with a first-round TKO over Joe Adams on October 30, 1979, Witherspoon quickly rose through the ranks. In 1981, he participated in his first high profile fight, knocking out future world cruiserweight champion Alfonzo Ratliff, after which he was signed by an impressed Don King. Witherspoon was a sparring partner of Ali as he was training to fight Larry Holmes and Trevor Berbick. Ali also gave Witherspoon his ring alias of "Terrible" Tim Witherspoon.

In 1982, he was matched with Renaldo Snipes, who had just given champion Larry Holmes a stiff challenge (and knocked Holmes down), and outpointed him over 10 rounds, setting up his own challenge to Holmes.

On May 20, 1983, Witherspoon would have his first attempt at earning a world title by taking on the recognized top man in the division World Boxing Council champion Larry Holmes at the Dunes Hotel in Las Vegas. Witherspoon, a relative unknown, utilized his awkward style and natural physical strength and fought valiantly. However, he lost the fight by a split decision.

Riddick Lamont Bowe (born August 10, 1967, Brooklyn, New York City) is an American professional boxer. He is a former two-time World Heavyweight Champion, first winning the WBA, WBC and IBF titles in 1992, becoming Undisputed Heavyweight Champion. Bowe's second reign as Heavyweight champion was in 1995 when he won the WBO title. Bowe retired in 1996 but made a return to the ring in 2004. He has currently been inactive since 2008.

Riddick Bowe holds notable victories over Tony Tubbs, Bruce Seldon, Pierre Coetzer, Evander Holyfield (x2), Herbie Hide and Andrew Golota (x2). Riddick Bowe became the first fighter to defeat Holyfield when he beat him in 1992 for the World Heavyweight title. He then became the first fighter knock Holyfield out, when he beat him in their rubber match in 1995. Currently, Bowes professional boxing record stands at 43-1-0 (1 NC) with 33 KO'S. Buster Mathis, Jr. is the only opponent Bowe has fought but has not defeated, due to their No Contest in 1994. Riddick Bowe was ranked as the 21st Greatest Heavyweight of all time by Boxing Scene.

Everett Wayne Martin (born July 4, 1964 in Tyler, TX), also known as Bigfoot Martin is a former professional boxer. He is a journeyman heavyweight best known for his performances against more notable contenders.

Martin was a prospect early in his pro career. He turned pro in 1984 at the age of 20. He started his career at cruiserweight and fought as low as 167 pounds, boxed 16 heavyweight world champions.

In 1988 Martin scored one of the biggest wins of his career with a decision win over rising prospect Bert Cooper. In 1989 he moved up to heavyweight to fight comebacking George Foreman, and lost a decision. Martin then moved on to fight a "Who's Who" dossier of heavyweight prospects and future champions. Rarely winning a bout, Martin was a classic journeyman fighter. Martin lost bouts to Michael Moorer, Riddick Bowe, and James Smith before scoring a shocking decision win over Tim Witherspoon in 1993. The victory was to be one of the last for Martin, although his career spanned for eight more years. Martin went on to lose to Larry Holmes, Tony Tucker, Tony Tubbs, Wladimir Klitschko (twice),Lamon Brewster, Danell Nicholson, Fres Oquendo, Obed Sullivan, David Bostice, and Sergey Lyakhovich. Martin closed out his career with a TKO loss to future champion Ruslan Chagaev.