Pittsburgh running back Franco Harris races down the sideline with a controversial 60 yard pass from quarterback Terry Bradshaw to give the Steelers a 13-7 win over the Oakland Raiders in the 1972 AFC Divisional Playoff Game on December 23, 1972. (National Football League)

Pittsburgh running back Franco Harris gathers a controvesial pass from quarterback Terry Bradshaw that he raced with for 60 yards and a touchdown to give the Steelers a 13-7 win over the Oakland Raiders in the 1972 AFC Divisional Playoff Game on December 23, 1972. (National Football League)

Pittsburgh Steelers' Franco Harris (32) eludes a tackle attempt by Oakland Raiders' Jimmy Warren on the way to scoring the go-ahead touchdown in the American Conference playoff game in Pittsburgh. Pittsburgh won 13-7. The play was the "Immaculate Reception," a desperation pass by Terry Bradshaw that deflected off either Oakland's Jack Tatum or Pittsburgh's Frenchy Fuqua before Harris made a shoestring catch. (AP Photo/Harry Cabluck)

Pittsburgh Steelers head coach Chuck Noll, left, keeps in touch with his spotters during game against the Oakland Raiders in the American Conference playoff game in Pittsburgh, Pennsylvania on Dec. 23, 1972. John Madden, right, Oakland Raiders head coach puts hand to face watching action. (AP Photo)

Terry Bradshaw, left, Pittsburgh Steelers quarterback, gets a hug from reserve quarterback Terry Hanratty in the dressing room after the Steelers defeated the Oakland Raiders 13-7 in the American Conference playoff game in Pittsburgh, Pa., Dec. 23, 1972. Hanratty threw the winning pass that was tipped by an Oakland defenseman and caught by Franco Harris of the Steelers for a touchdown in closing minutes of the game. (AP Photo)

Pittsburgh Steelers head coach Chuck Noll, left, keeps in touch with his spotters during game against the Oakland Raiders in the American Conference playoff game in Pittsburgh, Dec. 23, 1972. John Madden, right, Oakland Raiders head coach puts hand to face watching. (AP Photo)