In a matter of seconds, the Chiefs got a play they needed followed by a tough break, both involving speedster Tyreek Hill. The Chiefs trailed by six but worked their way to a final possession with two minutes remaining and in decent field position thanks to Hill’s 32-yard punt return that set up the Chiefs at their 44. Training throughout the game, a comeback, once seemingly improbable, was presented to the Chiefs. “Great opportunity,” quarterback Alex Smith said. “We do a lot of situational two-minute stuff. You would take that situation every day of the week, that much time, a timeout, that field position to go down and get a score. “That’s definitely do-able. We just couldn’t get it done, for whatever reason.” One of those reasons the game ended in a 19-13 Steelers victory was the unavailability of several key weapons at the moment. The Chiefs played without starting wide receiver Albert Wilson, a pregame scratch because of a knee injury. Wide receiver Chris Conley was lost for the season with a ruptured Achilles suffered last weekend. And on the punt return, Hill was hit hard by Tyler Matakevich and Roosevelt Nix, and the Chiefs’ fastest player was knocked from the game.