15 Greatest Boxers Of All Time

12. Joe Frazier

Joe Frazier also referred as Smokin’ Joe was Olympic gold medalist and world heavyweight champion. His professional career began in 1965 until in 1976 and had one fight comeback in 1981. He had defeated Jerry Quarry, Eddie Machen, George Chuvalo and others.

Ali and Frazier had their first battle on March 8th, 1971. The fight was dubbed as the Fight of the Century. Frazier won by unanimous decision and he delivered the first defeat of Ali in professional boxing.

Frazier was best remembered for his fight against Muhammad Ali, known as The Thrilla in Manila. Grueling rounds took place in the Philippines, and was considered by most boxing enthusiasts as the greatest boxing fight. Due to eyesight issues, Frazier was prevented by his trainer to go for the final round and Ali won the fight.

11. Sugar Ray Leonard

Sugar Ray Leonard is an Olympic champion and had won a gold medal in the 1976 Olympic Games. He had joined the professional boxing a year after winning in the Olympics.

In 1987, he defeated Marvin Hagler for the WBC middleweight title. The Leonard and Hagler match was one of the greatest boxing matches of all time.

Leonard retired in 1997 and was subsequently inducted into Boxing Hall of Fame.

10. Rocky Marciano

Rocky Marciano is a heavyweight boxer from 1947 to 1956. His boxing record includes 49 wins, 43 knockouts and no losses. He is iconic undefeated American boxer popular for his punches.

Marciano had won the heavyweight belt by knocking out Jersey Walcott in the 13th-round. He had another six title defense before he retired in 1956.