Pittsburgh Steelers running back DeAngelo Williams (34) celebrates his touchdown during the first half of an NFL football game against the Denver Broncos in Pittsburgh, Sunday, Dec. 20, 2015. (AP Photo/Don Wright)

Pittsburgh Steelers quarterback Ben Roethlisberger (7) passes during the first half of an NFL football game against the Denver Broncos in Pittsburgh, Sunday, Dec. 20, 2015. (AP Photo/Fred Vuich)

Denver Broncos wide receiver Emmanuel Sanders (10) scores a touchdown on a pass from quarterback Brock Osweiler (17) during the first half of an NFL football game in Pittsburgh, Sunday, Dec. 20, 2015. (AP Photo/Fred Vuich)

Denver Broncos wide receiver Emmanuel Sanders (10) runs past Pittsburgh Steelers free safety Mike Mitchell (23) for a touchdown during the first half of an NFL football game in Pittsburgh, Sunday, Dec. 20, 2015. (AP Photo/Fred Vuich)

Denver Broncos defensive end Malik Jackson (97) sacks Pittsburgh Steelers quarterback Ben Roethlisberger (7) during the first half of an NFL football game in Pittsburgh, Sunday, Dec. 20, 2015. (AP Photo/Fred Vuich)

Denver Broncos wide receiver Emmanuel Sanders (10) celebrates his touchdown with teammate Demaryius Thomas (88) during the first half of an NFL football game against the Pittsburgh Steelers in Pittsburgh, Sunday, Dec. 20, 2015. (AP Photo/Fred Vuich)

Denver Broncos quarterback Brock Osweiler (17) scrambles into the end zone for a touchdown past Pittsburgh Steelers strong safety Will Allen (20) during the first half of an NFL football game in Pittsburgh, Sunday, Dec. 20, 2015. (AP Photo/Fred Vuich)

Pittsburgh Steelers quarterback Ben Roethlisberger (7) walks on the sidelines during the first half of an NFL football game against the Denver Broncos in Pittsburgh, Sunday, Dec. 20, 2015. (AP Photo/Fred Vuich)

Denver Broncos wide receiver Demaryius Thomas (88) gets past Pittsburgh Steelers cornerback Antwon Blake (41) en route to the end zone for a touchdown during the first half of an NFL football game in Pittsburgh, Sunday, Dec. 20, 2015. (AP Photo/Fred Vuich)

Denver Broncos wide receiver Demaryius Thomas (88) gets in to the end zone past Pittsburgh Steelers strong safety Will Allen (20) for a touchdown during the first half of an NFL football game in Pittsburgh, Sunday, Dec. 20, 2015. (AP Photo/Fred Vuich)

Denver Broncos defensive back Josh Bush (20) is tackled by Pittsburgh Steelers wide receiver Markus Wheaton (11) after recovering a fumble during the first half of an NFL football game in Pittsburgh, Sunday, Dec. 20, 2015. (AP Photo/Don Wright)

Pittsburgh Steelers wide receiver Antonio Brown (84) catches a touchdown pass behind Denver Broncos cornerback Chris Harris (25) during the second half of an NFL football game in Pittsburgh, Sunday, Dec. 20, 2015. (AP Photo/Fred Vuich)

Pittsburgh Steelers wide receiver Antonio Brown (84) catches a touchdown pass behind Denver Broncos cornerback Chris Harris (25) during the second half of an NFL football game in Pittsburgh, Sunday, Dec. 20, 2015. (AP Photo/Don Wright)

Pittsburgh Steelers running back DeAngelo Williams (34) turns the corner on Denver Broncos inside linebacker Danny Trevathan (59) during the second half of an NFL football game in Pittsburgh, Sunday, Dec. 20, 2015. (AP Photo/Fred Vuich)

Pittsburgh Steelers wide receiver Antonio Brown (84) celebrates his touchdown during the second half of an NFL football game in Pittsburgh, Sunday, Dec. 20, 2015. (AP Photo/Don Wright)

Pittsburgh Steelers quarterback Ben Roethlisberger (7) passes during the second half of an NFL football game under pressure by Denver Broncos inside linebacker Danny Trevathan (59) in Pittsburgh, Sunday, Dec. 20, 2015. (AP Photo/Don Wright)

Pittsburgh Steelers wide receiver Markus Wheaton (11) celebrates wide receiver Antonio Brown (84) after scoring a touchdown during the second half of an NFL football game against the Denver Broncos in Pittsburgh, Sunday, Dec. 20, 2015. (AP Photo/Don Wright)

Pittsburgh Steelers wide receiver Markus Wheaton (11) celebrates with quarterback Ben Roethlisberger (7) after scoring the two connected on a touchdown pass during the second half of an NFL football game against the Denver Broncos in Pittsburgh, Sunday, Dec. 20, 2015. (AP Photo/Don Wright)

Pittsburgh Steelers wide receiver Markus Wheaton (11) reaches for the end zone for a touchdown with Denver Broncos cornerback Chris Harris (25) defending during the second half of an NFL football game in Pittsburgh, Sunday, Dec. 20, 2015. (AP Photo/Don Wright)

Pittsburgh Steelers wide receiver Antonio Brown (84) celebrates his touchdown with Darrius Heyward-Bey (88) during the second half of an NFL football game in Pittsburgh, Sunday, Dec. 20, 2015. (AP Photo/Don Wright)

Pittsburgh Steelers wide receiver Antonio Brown (84) celebrates his touchdown with teammate Darrius Heyward-Bey (88) during the second half of an NFL football game against the Denver Broncos in Pittsburgh, Sunday, Dec. 20, 2015. (AP Photo/Don Wright)

Pittsburgh Steelers wide receiver Antonio Brown (84) splits the defenders Denver Broncos cornerback Chris Harris (25) and Josh Bush (20) as he runs into the end zone for a touchdown during the second half of an NFL football game in Pittsburgh, Sunday, Dec. 20, 2015. (AP Photo/Don Wright)