Leon Spinks vs. Muhammad Ali II John Tate and Gerrie Coetzee for the vacant WBA title. "We knew Muhammad Ali was going to retire," Arum said, "but as long as he delayed, I couldn't make definite plans." However, in October 1980 Ali returned to face WBC Champion Larry Holmes but was stopped by TKO in the 10th round. He then retired for good after a lackluster loss to Trevor Berbick in December 1981, thus making this fight the final win in Ali's career. Leon Spinks vs. Muhammad Ali II Leon Spinks vs. Muhammad Ali II, was a professional boxing match contested on September 15, 1978 in
Muhammad Ali vs. Oscar Bonavena After the fight, Ali grabbed a microphone and shouted: Ali's next boxing match would be with Joe Frazier. Bonavena would later die under tragic circumstances in 1976. Muhammad Ali vs. Oscar Bonavena Heavyweight boxers Muhammad Ali and Oscar Bonavena fought at Madison Square Garden in New York City on December 7, 1970. Ali won the bout through a technical knockout in the 15th round. According to Ferdie Pacheco, Ali absorbed more punishment in this particular fight than in any of his previous fights, and it was a mistake for Ali to have fought with Bonavena just before his first fight