FILE - In this Dec. 3, 1972, file photo, Pittsburgh Steelers' Franco Harris (32) eludes a tackle by Oakland Raiders' Jimmy Warren on a 42-yard run to score the winning touchdown in the American Conference playoff game in Pittsburgh. Harris' "Immaculate Reception" came when a desperation pass to a teammate bounced off a Raiders defender. The touchdown gave Pittsburgh a 13-7 lead with five seconds left in the game. For every unplanned play that earns a name like the Immaculate Reception, there‚Äôs a gimmick cooked up by coaches to catch a defense by surprise. (AP Photo/Harry Cabluck, File)