When Ali was drafted for Vietnam, many questioned whether he would accept the induction.
Why did Muhammad Ali refuse to fight in the Vietnam War? - Quora
Was Muhammad Ali a draft dodger? Did he avoid fighting in the Vietnam War? - Quora
New Muhammad Ali Movie Will Focus on His Vietnam War Draft Refusal
Muhammad Ali, Muhammad Ali Refuses the Vietnam War Draft, Episode 2
Muhammad Ali' packs a punch: Boxer's four-part documentary tells his story in and out of the ring
The Ties That Bind Muhammad Ali to the NFL Protests, History
Muhammad Ali, Muhammad Ali Refuses the Vietnam War Draft, Episode 2
From the archive, 29 April 1967: Muhammad Ali refuses to fight in Vietnam war, Muhammad Ali
Muhammad Ali's letter to US Army seeking exemption from Vietnam war goes to auction
Muhammad Ali: New documentary shows how legend stayed true to himself in 'hero' journey