Muhammad Ali 21 during an elimination bout following Rocky Marciano's retirement. Mike Tyson broke both records in 1986 when he defeated Trevor Berbick to win the heavyweight title at age 20. Soon after the Liston fight, Clay changed his name to Cassius X, and then later to Muhammad Ali upon converting to Islam and affiliating with the Nation of Islam. Ali then faced a rematch with Liston scheduled for May 1965 in Lewiston, Maine. It had been scheduled for Boston the previous November, but was postponed for six months due to Ali's emergency surgery for a hernia three days before. The fight
Matthew Saad Muhammad about by boxing aficionados. Saad Muhammad was hit with 20 "unanswered" blows in round eight, but he recovered and dropped López five times en route to a 14th-round knockout win. “This was my toughest fight,” said Saad Muhammad of the fight, which some consider the closest López ever came to a world title. He then went on to defeat Lottie Mwale, Vonzell Johnson, future world Super-Middleweight champion Murray Sutherland and Jerry Martin, all in defense of his world title, before losing to Dwight Muhammad Qawi in December 1981. In yet another fight that would later by shown on ESPN's classic