The Pittsburgh Steelers are mourning the loss of a football legend, as Hall of Fame running back Franco Harris has passed away. Harris’ son Dok confirmed the news to The Associated Press, but no cause of death was given. Harris’ death comes just days before the Steelers were planning to retire his No. 32 jersey during their game against the Las Vegas Raiders on Saturday night.

Harris is best known for his role in “The Immaculate Reception,” a play that took place in the Steelers’ 1972 playoff game against the Oakland Raiders. With the Steelers trailing 7-6 and facing fourth-and-10 from their own 40-yard line with only 22 seconds remaining, quarterback Terry Bradshaw threw a desperation pass that deflected off two Steelers players and into the air. Harris caught the ball just before it hit the ground and ran 45 yards for the game-winning touchdown. The win was Pittsburgh’s first-ever postseason victory, and Harris’ catch has become one of the most iconic plays in NFL history.

Harris spent 12 seasons with the Steelers, rushing for a total of 12,120 yards and making nine Pro Bowl appearances. He was named MVP of Super Bowl IX and helped the Steelers win four Super Bowls in the 1970s. He also holds the record for most rushing yards in Super Bowl appearances, with 354 yards in four appearances. In 1990, Harris was inducted into the Pro Football Hall of Fame.

After his playing career ended, Harris remained active in the Pittsburgh community, founding the Super Bakery and becoming involved in various charitable endeavors. He is remembered not only for his on-field achievements, but also for his contributions to the Steelers organization and the city of Pittsburgh. The Steelers and the entire football community are mourning the loss of Franco Harris, and he will be greatly missed.