That game hit the record books as the fourth-coldest in NFL history, with casualties including frostbite, hypothermia and a busted helmet. For professional sports teams, how might that change the game? Some people argued that air temperature could have been the real culprit. "Since the ball is harder, there is a risk for fractures of the hand and fingers when trying to catch or receive the ball." On Jan. 15, hundreds of fans showed up to prepare Highmark Stadium for the game.