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
Tim Witherspoon Tim Witherspoon Tim Witherspoon (born December 27, 1957) is an American former professional boxer who competed from 1979 to 2003. He is a two-time world heavyweight champion, having held the WBC title in 1984, and the WBA title in 1986. Witherspoon also worked as a regular sparring partner for Muhammad Ali. Witherspoon had six amateur bouts, losing the last to Marvis Frazier on decision after getting knocked down. Making his professional debut with a first-round TKO over Joe Adams on October 30, 1979, Witherspoon quickly rose through the ranks. In 1981, he participated in his first high-profile fight, knocking out