On this date in 2015, Pittsburgh Steelers safety Troy Polamalu officially announced his retirement from the NFL after 12 seasons.
Polamalu told Jim Wexell of Steel City Insider in an interview that he had informed owner Dan Rooney that he had played his last game for the black and gold.
Polamalu, who was drafted by the Steelers in the first round of the 2003 NFL Draft out of USC, played in 158 regular-season games for the Steelers in addition to 15 playoff games and three Super Bowls. During that span he was voted All-Pro five times and made eight Pro Bowl teams.