The case has been made that, without his freeze breath, super-speed or invulnerability, Superman really ain't that tough. In the famous 1978 Superman vs. Muhammad Ali comic, a de-powered Kal-El had to face up against The Greatest of All Time and got smacked around by the champion. But, when you compare Ali to Little…

Take a look at this awesome graffiti found in the streets of Paris. A down and out Ryu from Street Fighter is added to that empowering image of Muhammad Ali's quickly-won 1965 heavyweight championship rematch against Sonny Liston, which these days you may see more often on the walls of college students than of boxing…