Every sport has an icon: one person who defines what that sport looks, sounds, and feels like. In the boxing world, there is no single fighter who could be said to have a greater claim to that title than Muhammad Ali. Ali changed the sport of boxing, flipped it on its head, and, in-so-doing became the inspiration of all the young boxers who followed in his “butterfly-like” footsteps. But, perhaps, even more impressively, Muhammad Ali changed the way all athletes are regarded.