Denver Broncos running back C.J. Anderson celebrates after scoring during the second half. The Associated Press

Denver Broncos wide receiver Demaryius Thomas scores the two-point conversion against the Pittsburgh Steelers during the second half. The Associated Press

Denver Broncos outside linebacker DeMarcus Ware, right, celebrates a fumble recovery with outside linebacker Von Miller, left, during the second half. The Associated Press

Pittsburgh Steelers running back Fitzgerald Toussaint, left, pushes off Denver Broncos inside linebacker Danny Trevathan during the second half in an NFL football divisional playoff game, Sunday, Jan. 17, 2016, in Denver. (AP Photo/Jack Dempsey)

Pittsburgh Steelers wide receiver Martavis Bryant, runs past Denver Broncos outside linebacker DeMarcus Ware during the first half in an NFL football divisional playoff game, Sunday, Jan. 17, 2016, in Denver. (AP Photo/Jack Dempsey)

Pittsburgh Steelers wide receiver Darrius Heyward-Bey, left, runs around Denver Broncos defensive back Josh Bush during the first half> The Associated Press

Pittsburgh Steelers quarterback Ben Roethlisberger passes against the Denver Broncos during the first half. The Associated Press

Denver Broncos quarterback Peyton Manning throws against the Pittsburgh Steelers during the first half in an NFL football divisional playoff game, Sunday. The Associated Press

Denver Broncos tight end Virgil Green, above, dives over Pittsburgh Steelers inside linebacker Lawrence Timmons, left, and free safety Mike Mitchell during the first half. The Associated Press

Pittsburgh Steelers running back Fitzgerald Toussaint celebrates after scoring against the Denver Broncos during the first half. The Associated Press

People wave a giant flag before an NFL football divisional playoff game between the Denver Broncos and the Pittsburgh Steelers, Sunday in Denver. The Associated Press