In 1975, Ali left the NOI and converted to the more mainstream Sunni Islam. 30 years later in 2005, Ali began began adhering to Sufism.
Muhammad Ali shakes hands with Egyptian President Gamal Abdel Nasser, watched by Ali's manager Jabir Herbert Muhammad. Jabir Herbert Muhammad is the son of Elijah Muhammad, leader of the Nation of Islam. (Keystone/Hulton Archive/Getty Images)
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