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PITTSBURGH, PA - DECEMBER 6: Running back Frank Gore #23 of the Indianapolis Colts is upended by safety Mike Mitchell of the Pittsburgh Steelers during a game at Heinz Field on December 6, 2015 in Pittsburgh, Pennsylvania. The Steelers defeated the Colts 45-10. (Photo by George Gojkovich/Getty Images)

PITTSBURGH, PA - DECEMBER 6:  Running back Frank Gore #23 of the Indianapolis Colts is upended by safety Mike Mitchell of the Pittsburgh Steelers during a game at Heinz Field on December 6, 2015 in Pittsburgh, Pennsylvania.  The Steelers defeated the Colts 45-10. (Photo by George Gojkovich/Getty Images)