Dallas Cowboys running back DeMarco Murray (29) celebrates his touchdown against the Pittsburgh Steelers with Dez Bryant (88) during the second half of an NFL football game Sunday, Dec. 16, 2012 in Arlington, Texas. (AP Photo/Tony Gutierrez)

Dallas Cowboys quarterback Tony Romo (9) takes the field before an NFL football game against the Pittsburgh Steelers Sunday, Dec. 16, 2012 in Arlington, Texas. (AP Photo/Tony Gutierrez)

Pittsburgh Steelers quarterback Ben Roethlisberger (7) passes the ball as Dallas Cowboys outside linebacker Anthony Spencer (93) defends during the first half of an NFL football game Sunday, Dec. 16, 2012 in Arlington, Texas. (AP Photo/LM Otero)

Dallas Cowboys free safety Gerald Sensabaugh,left, and strong safety Eric Frampton (27) knock the ball out of Pittsburgh Steelers wide receiver Emmanuel Sanders' (88) hands during the first half of an NFL football game Sunday, Dec. 16, 2012 in Arlington, Texas. (AP Photo/LM Otero)

Dallas Cowboys quarterback Tony Romo (9) passes the ball against the Pittsburgh Steelers during the first half of an NFL football game Sunday, Dec. 16, 2012 in Arlington, Texas. (AP Photo/Tony Gutierrez)

As Dallas Cowboys punter Brian Moorman (2) holds, kicker Dan Bailey (5) makes a field goal against the Pittsburgh Steelers during the first half of an NFL football game Sunday, Dec. 16, 2012 in Arlington, Texas. (AP Photo/LM Otero)

Dallas Cowboys tight end Jason Witten (82) scores a touchdown against the Pittsburgh Steelers during the first half of an NFL football game Sunday, Dec. 16, 2012 in Arlington, Texas. (AP Photo/LM Otero)

Dallas Cowboys tight end Jason Witten (82) makes a touchdown reception against the Pittsburgh Steelers during the first half of an NFL football game Sunday, Dec. 16, 2012 in Arlington, Texas.(AP Photo/Tony Gutierrez)

Dallas Cowboys head coach Jason Garrett gestures during the first half of an NFL football game against the Pittsburgh Steelers Sunday, Dec. 16, 2012 in Arlington, Texas. (AP Photo/Tony Gutierrez)

Pittsburgh Steelers quarterback Ben Roethlisberger (7) celebrates a touchdown against the Dallas Cowboys during the first half of an NFL football game Sunday, Dec. 16, 2012 in Arlington, Texas. (AP Photo/LM Otero)

Pittsburgh Steelers tight end Heath Miller (83) runs in a touchdown as Dallas Cowboys outside linebacker Anthony Spencer (93) defends during the first half of an NFL football game Sunday, Dec. 16, 2012 in Arlington, Texas. (AP Photo/Tony Gutierrez)

Pittsburgh Steelers tight end Heath Miller (83) celebrates his touchdown against the Dallas Cowboys with guard David DeCastro (66) and tackle Kelvin Beachum (68) during the first half of an NFL football game Sunday, Dec. 16, 2012 in Arlington, Texas. (AP Photo/Tony Gutierrez)

Pittsburgh Steelers quarterback Ben Roethlisberger (7) celebrates a touchdown against the Dallas Cowboys with center Maurkice Pouncey (53) and tackle Max Starks (78) during the first half of an NFL football game Sunday, Dec. 16, 2012 in Arlington, Texas. (AP Photo/LM Otero)

Dallas Cowboys wide receiver Dez Bryant (88) celebrates his touchdown against the Pittsburgh Steelers with Dallas Cowboys head coach Jason Garrett during the second half of an NFL football game Sunday, Dec. 16, 2012 in Arlington, Texas. (AP Photo/Tony Gutierrez)

Dallas Cowboys wide receiver Dez Bryant (88) celebrates his touchdown against the Pittsburgh Steelers with Lawrence Vickers (47) during the second half of an NFL football game Sunday, Dec. 16, 2012 in Arlington, Texas. (AP Photo/Tony Gutierrez)

Pittsburgh Steelers wide receiver Mike Wallace (17) makes a 60-yard reception against the Dallas Cowboys during the second half of an NFL football game Sunday, Dec. 16, 2012 in Arlington, Texas. (AP Photo/LM Otero)

Pittsburgh Steelers quarterback Ben Roethlisberger (7) celebrates a touchdown against the Dallas Cowboys during the second half of an NFL football game Sunday, Dec. 16, 2012 in Arlington, Texas. (AP Photo/LM Otero)

Pittsburgh Steelers wide receiver Antonio Brown (84) celebrates his touchdown against the Dallas Cowboys during the second half of an NFL football game Sunday, Dec. 16, 2012 in Arlington, Texas. (AP Photo/LM Otero)

Pittsburgh Steelers wide receiver Antonio Brown (84) scores a touchdown as Dallas Cowboys cornerback Mike Jenkins (21) defends during the second half of an NFL football game Sunday, Dec. 16, 2012 in Arlington, Texas. (AP Photo/LM Otero)

Pittsburgh Steelers wide receiver Antonio Brown (84) celebrates his touchdown against the Dallas Cowboys during the second half of an NFL football game, Sunday, Dec. 16, 2012, in Arlington, Texas. (AP Photo/LM Otero)

Pittsburgh Steelers wide receiver Jerricho Cotchery (89) and quarterback Ben Roethlisberger celebrate a touchdown against the Dallas Cowboys during the second half of an NFL football game Sunday, Dec. 16, 2012 in Arlington, Texas. (AP Photo/LM Otero)

Pittsburgh Steelers head coach Mike Tomlin walks the sideline during the second half of an NFL football game against the Dallas Cowboys Sunday, Dec. 16, 2012 in Arlington, Texas. (AP Photo/LM Otero)

Dallas Cowboys running back DeMarco Murray (29) goes over the top for yardage against the Pittsburgh Steelers during the second half of an NFL football game Sunday, Dec. 16, 2012 in Arlington, Texas. (AP Photo/LM Otero)

Dallas Cowboys linebacker Brady Poppinga (98) congratulates Brandon Carr (39) for Carr's overtime interception against the Pittsburgh Steelers during an NFL football game Sunday, Dec. 16, 2012 in Arlington, Texas. Dallas won 27-24. (AP Photo/Tony Gutierrez)

Dallas Cowboys punter Brian Moorman (2) and John Phillips (89) celebrate after kicker Dan Bailey (5) kicked a field goal to beat the Pittsburgh Steelers 27-24 in overtime of an NFL football game Sunday, Dec. 16, 2012 in Arlington, Texas. Pittsburgh Steelers' Josh Victorian (35) leaves the field. (AP Photo/LM Otero)

Dallas Cowboys defensive end Marcus Spears (96) sacks Pittsburgh Steelers quarterback Ben Roethlisberger (7) during the second half of an NFL football game Sunday, Dec. 16, 2012 in Arlington, Texas. (AP Photo/LM Otero)

Dallas Cowboys tight end Jason Witten (82) congratulates Brandon Carr (39) for Carr's interception against the Pittsburgh Steelers during overtime of an NFL football game, Sunday, Dec. 16, 2012 in Arlington, Texas. Dallas won 27-24. (AP Photo/Tony Gutierrez)

Dallas Cowboys cornerback Brandon Carr (39) celebrates after the Cowboys beat the Pittsburgh Steelers 27-24 in overtime of an NFL football game Sunday, Dec. 16, 2012 in Arlington, Texas. Carr intercepted the ball in overtime to set up the winning field goal. (AP Photo/LM Otero)

Dallas Cowboys defensive end Jason Hatcher (97), celebrates with defensive end Marcus Spears (96) after Spears sacked Pittsburgh Steelers quarterback Ben Roethlisberger during the second half of an NFL football game Sunday, Dec. 16, 2012 in Arlington, Texas. Dallas won 27-24 in overtime. (AP Photo/LM Otero)