PITTSBURGH--A fairly pedestrian special teams tackle in Sunday’s game between the Steelers and Chargers was followed by a “disturbing” show of emotion that was totally disproportionate to the actual play, witnesses reported. “Sproles, out to the 25, and he’s brought down by Andre Frazier,” said broadcaster Al Michaels. “And now Frazier is running full-speed to the 50-yard line, convulsing, punching himself in the chest and head, and…my God, is he alright? Somebody should call an ambulance. This man is having a seizure! Oh no! Now he’s attacking his teammates! He’s ramming into them like a deranged bull! When is somebody going to put a stop to this?”  Upon realizing the display was simply a celebration, Michaels said, “Oh, it was a celebration. I see. I guess it was justified since, you know, special teams tackles are so rare. Maybe they'll put his shoes in the Hall of Fame.”