Ever heard of Cassius Clay?
He is none other than the famous boxing champion and Olympic medalist, Muhammad Ali. He was baptized as a Christian and named Cassius Clay on birth. However, in 1962, at the age of 20, the boxer met Malcolm X, who introduced him to the Nation of Islam, an ongoing religious movement to help improve the condition of African Americans.
Inspired, Ali soon converted to Islam, under the mentorship of Malcolm X. In 2005, he began following the Sufism practice of the religion.