Alex Smith squirmed out of the pile in the end zone, got to his feet and let out a roar. All it took was the largest comeback in the 56-year history of the Kansas City Chiefs for the stoic quarterback with the California cool to finally let some emotion show. Smith threw for 363 yards and two touchdowns to rally his team from a three-touchdown hole, then scored on third-and-goal on the first possession of overtime for a heart-stopping 33-27 victory over the San Diego Chargers in their season opener Sunday. Read more http://www.espn.com/nfl/recap?gameId=400874570QAAQ1