Close-up of American football player 'Mean Joe' Greene of the Pittsburgh Steelers as he crouches on the field, eyeing his opponant, 1970s. (Photo by Robert Riger/Getty Images)
Close-up of American football player 'Mean Joe' Greene of the Pittsburgh Steelers as he crouches on the field, eyeing his opponant, 1970s. (Photo by Robert Riger/Getty Images)