The first contest between Muhammad Ali and Joe Frazier on March 8, 1971 called "The Fight of the Century."

Ali was 29 and had completed two tune-up fights after a three year period of inactivity. Frazier was 27 years old and in his prime. Ali first returned to the ring with a third-round TKO of Jerry Quarry on October 26, 1970. He had also stopped Oscar Bonavena in the 15th round on December 7, 1970. Both opponents were formidable contenders. Following the Bonavena fight, Ali would meet Frazier.

Frazier cemented his victory by sending Ali to the canvas in Round 15.