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
Muhammad Ali theaters, where viewers paid for tickets to watch the fight live. The use of closed-circuit for boxing telecasts peaked in popularity with Ali in the 1960s and 1970s. Most of Ali's closed-circuit telecasts were handled by his promotion company Main Bout. The following table lists known ticket sales/buys for Ali fights at closed-circuit venues/theaters: Professional boxing was introduced to pay-per-view home cable television with several Muhammad Ali fights, especially the "Thrilla in Manila" fight between Ali and Joe Frazier in 1975, which was transmitted through HBO. Ali had several fights broadcast on early pay-per-view home television: Photo essays Muhammad Ali