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
The Super Fight The Super Fight The Super Fight was a fictional boxing match between Rocky Marciano and Muhammad Ali shot in 1969 and released in 1970. At the time, Ali and Marciano were the only undefeated heavyweight champions in history and fans often debated who would win had they met in their primes. Ali and Marciano were filmed sparring for 75 one-minute rounds producing several possible scenarios for a genuine fight, with the result claimed to have been determined using probability formulas entered into a computer. The final fight was only shown once in select cinemas around the world, grossing from 1,500