A day after watching their team's crushing loss, Raiders fans were still trying to understand how a folded index card fitted in the space between the football and the first-down marker somehow indicated that the Dallas Cowboys had made a critical first down.
Had the ball been turned over to the Raiders on downs, Oakland would have been in excellent shape for a game-winning drive on a short field.
The bizarre call in Sunday night's game triggered a flurry of Twitter memes lampooning Referee Gene Steratore and his trusty index card, some of which we've included in the above gallery.