The 1971 Muhammad Ali vs. Joe Frazier fight, dubbed "The Fight of the Century," was a historic, undefeated heavyweight championship bout on March 8 at Madison Square Garden, where Joe Frazier won by unanimous decision, handing Ali his first professional loss with a famous left hook knockdown in the 15th round, solidifying Frazier as champion and beginning their legendary trilogy. #fblifestyle | Oman Fights Updates