Guglielmo Papaleo (September 19, 1922 – November 23, 2006) was an American professional boxer, better known as Willie Pep. Pep boxed a total of 1956 rounds in the 241 bouts during his 26 year career, a considerable number of rounds and fights even for a fighter of his era. His final record was 229-11-1 with 65 knockouts. Pep, known for his speed and finesse, is considered to be one of the best fighters of the 20th century and was inducted to the International Boxing Hall of Fame in 1990. Pep was voted as the #1 featherweight of the 20th Century by the Associated Press and ranked the #1 featherweight of all-time by the International Boxing Research Organization in 2005.

Pep first fought as an amateur in 1937. At the time, amateur boxers from Connecticut were allowed to fight for money. It was during the Great Depression hit and Pep's father was earning $15 per week at the Works Progress Administration. Willie was soon earning more in one night of fighting each week. When his parents found out he was boxing, his mother was worried for him, but his father said that if he was making so much fighting on Fridays, maybe he should see about fighting on Tuesdays as well. "My old man, he was a sports fan" Pep later quipped.

Joseph "Sandy" Saddler (June 23, 1926 – September 18, 2001) was an American boxer born in Boston, Massachusetts. He was a two-time featherweight world champion, and also held the junior lightweight crown. Over his twelve-year career (1944–1956), Saddler scored 103 knockouts. He was stopped only once, in his second pro fight, by Jock Leslie. His final record was 144-16-2. In 2003, he was ranked #5 on Ring Magazine's list of 100 greatest punchers of all time.

Saddler is best known for his four-bout series with Willie Pep. The two first faced off on October 29, 1948. Pep was the reigning featherweight champion of the world, and coming into the fight boasted a record of 134-1-1 (43 KO). Saddler captured the title by knocking Pep down four times en route to a four-round knockout victory. This was only the second time that Pep was beaten, Sammy Angott beat him in 1943, and first time he was ever stopped in 137 bouts.

Pep then recaptured the crown on February 11, 1949 by outpointing Saddler over 15 rounds. Saddler regained the crown on September 8, 1950 by a TKO in the eight round. Pep quit after dislocating his shoulder. The pair fought their last fight on September 26, 1951. In one of the dirtiest championship fights ever fought,^{[citation needed]} Saddler won when the fight was stopped in the tenth round.

Sugar Ray Robinson (born Walker Smith Jr., May 3, 1921 – April 12, 1989) was an American professional boxer. Frequently cited as the greatest boxer of all time, Robinson's performances in the welterweight and middleweight divisions prompted sportswriters to create "pound for pound" rankings, where they compared fighters regardless of weight. He was inducted into the International Boxing Hall of Fame in 1990.

Robinson was 85–0 as an amateur with 69 of those victories coming by way of knockout, 40 in the first round. He turned professional in 1940 at the age of 19 and by 1951 had a professional record of 128–1–2 with 84 knockouts. Robinson held the world welterweight title from 1946 to 1951, and won the world middleweight title in the latter year. He retired in 1952, only to come back two and a half years later and regain the middleweight title in 1955. He then became the first boxer in history to win a divisional world championship five times, a feat he accomplished by defeating Carmen Basilio in 1958 to regain the middleweight championship. Robinson was named "fighter of the year" twice: first for his performances in 1942, then nine years and over 90 fights later, for his efforts in 1951. He defeated other Hall of Fame fighters such as Jake LaMotta, Carmen Basilio, Gene Fullmer, Randy Turpin, Carl 'Bobo' Olson, Henry Armstrong, Rocky Graziano and Kid Gavilan. Robinson engaged in 200 pro bouts, and his professional career lasted nearly 26 years.