Signed Muhammad Ali Cut Autograph. This cut signature comes as is with NO COA. Muhammad Ali is arguably the most iconic athlete of all-time. In addition to being one of the most prolific boxers ever, his impact on American culture outside of the ring was monumental. Athletes today like to feign interest in social causes but wouldn't dare risk their careers taking the stances the way Muhammad Ali did. A principled anti-imperialist he refused to allow himself to be drafted into the Vietnam War appealing the decision all the way to the Supreme Court (eventually winning).