Then, in his last fight of note, Moore faced a young heavyweight out of Louisville named Cassius Clay (Muhammad Ali). Moore had been Clay's trainer for a time, but Clay became dissatisfied and left Moore because of Moore's attempts to change his style and his insistence that Clay do dishes and help clean gym floors. In the days before the fight, Clay had rhymed that "Archie Moore...Must fall in four." Moore replied that he had perfected a new punch for the match: The Lip-Buttoner. Nonetheless, as Clay predicted, Moore was beaten by a knockout in four rounds. Moore is the only man to have faced both Rocky Marciano and Muhammad Ali. After one more fight in 1963, a third-round knockout win over Mike DiBiase in Phoenix, Moore announced his retirement from boxing, for good.