Bloody Sundays - PittsburghLIVE.com

Bloody Sundays - PittsburghLIVE.com: "'You want to know how hard you're hit? If you're a running back, and you're hit full-speed, he can literally knock the feces out of your bowels. You lose all feeling in your limbs. That's how hard they hit in the NFL,' said Merrill Hoge, a former Steelers and Bears running back forced out of the game in 1995 because of a devastating series of concussions. "