Cassius Marcellus Clay, Jr. is fondly remembered as one of the greatest boxers of all time following his 21-year-long career. At a young age, the fighter became the heavyweight champion of the world three times and gave himself the now-iconic name, Muhammad Ali.<br /><br />During his time in the spotlight, Ali not only caused shock-waves in boxing, but outside the ring he also challenged mainstream America with his ongoing battle for black and Muslim equality.<br /><br />Early on in his career, Ali joined the religious organization The Nation Of Islam and gave himself what he referred to as his “slave name.”<br /><br />“Muhammad means ‘worthy of all praises’ and Ali means ‘most high,’” he is heard saying in an early interview before his tragic 2016 death.<br /><br />“It was a political and social awakening,” recalls Ali’s friend and biographer, Thomas Hauser, in REELZ’s new docuseries, Autopsy: Muhammad Ali.<br /><br />“He said ‘I wanna have a name of culture,” added Khalilah Ali, Muhammad Ali’s second wife, in the show teaser. “I wanna have a name of respect and dignity.”<br /><br />Autopsy: Muhammad Ali airs Sunday, April 1 at 8:00 ET / PT on REELZ.<br /><br />We pay for juicy info! Do you have a story for RadarOnline.com? Email us at tips@radaronline.com, or call us at (866) ON-RADAR (667-2327) any time, day or night.