A last-second deflected catch in a 1972 NFL playoff game became the most controversial and debated play in football history.
On December 23, 1972, with 22 seconds left and the Pittsburgh Steelers trailing the Oakland Raiders 7–6, quarterback Terry Bradshaw hurled a desperate fourth-down pass that would become the most famous play in NFL history. The ball collided near Raiders safety Jack Tatum and Steelers running back John Fuqua, ricocheting backward through the air.
Steelers fullback Franco Harris, who had run downfield as a backup receiver, scooped the deflected ball just inches before it hit the ground at the Oakland 44-yard line. He then sprinted untouched into the end zone for a stunning game-winning touchdown, giving the Steelers a 13–7 victory.
The play's legality hinged on a now-defunct NFL rule: if the ball bounced off only an offensive player (Fuqua) without touching a defender (Tatum), no other offensive player could legally catch it. To this day, no one has definitively proven whom the ball struck, making the play eternally controversial.
Referee Fred Swearingen made a phone call from a baseball dugout in the stadium to NFL supervisor of officials Art McNally in the press box before ruling it a touchdown. McNally later said Swearingen told him two officials confirmed opposing players touched the ball, to which McNally replied, 'Everything's fine then, go ahead.'
The play's iconic name came from Pittsburgh fan Michael Ord, who coined the pun on the Catholic doctrine of the Immaculate Conception while celebrating at a local bar. His girlfriend Sharon Levosky called sportscaster Myron Cope, who used the term on his 11 PM broadcast that night, and the name stuck forever.
Before this game, the Steelers had appeared in the postseason only once in their entire history — a 21–0 loss to the Philadelphia Eagles in 1947. The Immaculate Reception launched a dynasty: Pittsburgh went on to win four Super Bowls by the end of the 1970s.
Raiders coach John Madden maintained until his death that he would never get over the play. Oakland players dubbed it the 'Immaculate Deception,' and Jack Tatum himself admitted that even after reviewing stop-action film, nobody could definitively tell who the ball hit at the moment of impact.
In 2004, Carnegie Mellon physics professor John Fetkovich analyzed the play using conservation of momentum and concluded the ball must have bounced off Tatum, who was running upfield, rather than Fuqua. The ball rebounded 24 feet — far exceeding what Fetkovich could replicate throwing a football against a brick wall.