Pittsburgh Steelers running back DeAngelo Williams (34) out runs Baltimore Ravens defensive back Shareece Wright (35) during the first half of an NFL football game in Baltimore, Sunday, Dec. 27, 2015. (AP Photo/Gail Burton)

Pittsburgh Steelers running back DeAngelo Williams (34) dives into the end zone for a touchdown under pressure from Baltimore Ravens free safety Brynden Trawick (28) during the second half of an NFL football game in Baltimore, Sunday, Dec. 27, 2015. (AP Photo/Nick Wass)

Baltimore Ravens inside linebacker Daryl Smith (51) intercepts a pass intended for Pittsburgh Steelers wide receiver Antonio Brown (84) during the first half of an NFL football game in Baltimore, Sunday, Dec. 27, 2015. (AP Photo/Nick Wass)

Pittsburgh Steelers quarterback Ben Roethlisberger (7) is sacked by Baltimore Ravens defensive end Timmy Jernigan (97) during the first half of an NFL football game in Baltimore, Sunday, Dec. 27, 2015. (AP Photo/Patrick Semansky)

Baltimore Ravens' Justin Tucker (9) reacts his his field goal during the first half of an NFL football game against the Pittsburgh Steelers in Baltimore, Sunday, Dec. 27, 2015. (AP Photo/Nick Wass)

Baltimore Ravens quarterback Ryan Mallett warms up before an NFL football game against the Pittsburgh Steelers in Baltimore, Sunday, Dec. 27, 2015. (AP Photo/Nick Wass)

Baltimore Ravens wide receiver Chris Matthews (84) pulls in a touchdown pass during the first half of an NFL football game against the Pittsburgh Steelers in Baltimore, Sunday, Dec. 27, 2015. (AP Photo/Nick Wass)

Baltimore Ravens quarterback Ryan Mallett celebrates his touchdown pass to wide receiver Chris Matthews with Ryan Jensen (66) during the first half of an NFL football game against the Pittsburgh Steelers in Baltimore, Sunday, Dec. 27, 2015. (AP Photo/Gail Burton)

Baltimore Ravens quarterback Ryan Mallett, right, congratulates running back Javorius Allen (37) on his touchdown during the second half of an NFL football game in Baltimore, Sunday, Dec. 27, 2015. (AP Photo/Nick Wass)

Baltimore Ravens running back Javorius Allen (37) dances in the end zone to celebrate his touchdown during the second half of an NFL football game against the Pittsburgh Steelers in Baltimore, Sunday, Dec. 27, 2015. (AP Photo/Nick Wass)

Baltimore Ravens running back Javorius Allen (37) dives into the end zone for a touchdown as Pittsburgh Steelers inside linebacker Ryan Shazier (50) and free safety Mike Mitchell (23) try to hold him back during the second half of an NFL football game in Baltimore, Sunday, Dec. 27, 2015. (AP Photo/Nick Wass)

Baltimore Ravens wide receiver Chris Givens (13) is stopped by Pittsburgh Steelers cornerback William Gay (22) and free safety Mike Mitchell (23) during the second half of an NFL football game in Baltimore, Sunday, Dec. 27, 2015. (AP Photo/Nick Wass)

Pittsburgh Steelers running back DeAngelo Williams (34) carries the ball into the end zone for a touchdown during the second half of an NFL football game against the Baltimore Ravens in Baltimore, Sunday, Dec. 27, 2015. (AP Photo/Gail Burton)

Baltimore Ravens quarterback Ryan Mallett, right, hugs a member of the Ravens coaching staff after an NFL football game against the Pittsburgh Steelers in Baltimore, Sunday, Dec. 27, 2015. The Ravens defeated the Steelers 20-17. (AP Photo/Nick Wass)

Pittsburgh Steelers quarterback Ben Roethlisberger (7) is sacked by Baltimore Ravens outside linebacker Elvis Dumervil (58) during the second half of an NFL football game in Baltimore, Sunday, Dec. 27, 2015. The Ravens defeated the Steelers 20-17. (AP Photo/Patrick Semansky)

Pittsburgh Steelers defensive back Ross Cockrell (31) breaks up a pass intended for Baltimore Ravens wide receiver Chris Matthews (84) during the second half of an NFL football game in Baltimore, Sunday, Dec. 27, 2015. The Ravens defeated the Steelers 20-17. (AP Photo/Nick Wass)

The Baltimore Ravens cheerleader performs before an NFL football game against the Pittsburgh Steelers in Baltimore, Sunday, Dec. 27, 2015. (AP Photo/Nick Wass)

A Baltimore Ravens cheerleaders performs during the first half of an NFL football game against the Pittsburgh Steelers in Baltimore, Sunday, Dec. 27, 2015. (AP Photo/Nick Wass)

The Baltimore Ravens cheerleaders perform during the first half of an NFL football game against the Pittsburgh Steelers in Baltimore, Sunday, Dec. 27, 2015. (AP Photo/Nick Wass)