Add Yahoo as a preferred source to see more of our stories on Google. Muhammad Ali (left) with Rahaman in 1963, when the brothers were named Cassius and Rudolph Clay (Getty Images) A pivotal piece of ...

This image provided by Christie’s Auction House shows Muhammad Ali’s draft card. Christie’s Auction House via AP Muhammad Ali’s refusal to sign his Vietnam-era military draft card upended the boxing ...

Muhammad Ali’s refusal to sign his Vietnam-era military draft card upended the boxing champ’s life and added a powerful voice to the anti-war movement. Now that piece of history is coming up for sale.

LOUISVILLE, Ky. — Muhammad Ali's refusal to sign his Vietnam-era military draft card upended the boxing champ's life and added a powerful voice to the anti-war movement. Now that piece of history is ...