Kansas City Chiefs outside linebacker Tamba Hali stands in the rain as he warms up before an NFL football game against the Pittsburgh Steelers, Monday, Nov. 12, 2012, in Pittsburgh. (AP Photo/Don Wright)

Grounds crew workers at Heinz Field in Pittsburgh roll water off a tarp covering the field as it rains before an NFL football game between the Pittsburgh Steelers and the Kansas City Chiefs, Monday, Nov. 12, 2012. (AP Photo/Don Wright)

Nate Keys pulls his plastic parka hood over his head as he shields himself from the rain while working security before an NFL football game between the Pittsburgh Steelers and the Kansas City Chiefs, Monday, Nov. 12, 2012, in Pittsburgh. (AP Photo/Keith Srakocic)

Kansas City Chiefs running back Nate Eachus (45) warms up before an NFL football game against the Pittsburgh Steelers, Monday, Nov. 12, 2012, in Pittsburgh. (AP Photo/Don Wright)

Kansas City Chiefs running back Nate Eachus (45) warms up before an NFL football game against the Pittsburgh Steelers, Monday, Nov. 12, 2012, in Pittsburgh. (AP Photo/Don Wright)

Pittsburgh Steelers quarterback Ben Roethlisberger (7) passes in the first quarter of an NFL football game against the Kansas City Chiefs in Pittsburgh, Monday, Nov. 12, 2012. (AP Photo/Gene J. Puskar)

Kansas City Chiefs quarterback Matt Cassel (7) warms up before an NFL football game against the Pittsburgh Steelers, Monday, Nov. 12, 2012, in Pittsburgh. (AP Photo/Don Wright)

Kansas City Chiefs running back Jamaal Charles (25) is hit by Pittsburgh Steelers cornerback Keenan Lewis (23) during the first quarter of an NFL football game, Monday, Nov. 12, 2012, in Pittsburgh. (AP Photo/Don Wright)

Kansas City Chiefs running back Jamaal Charles (25) celebrates with guard Jeff Allen (71) after scoring a first-quarter touchdown against the Pittsburgh Steelers in an NFL football game, Monday, Nov. 12, 2012, in Pittsburgh. (AP Photo/Don Wright)

Pittsburgh Steelers quarterback Ben Roethlisberger (7) is pressured by Kansas City Chiefs outside linebacker Justin Houston (50) in the first quarter of an NFL football game in Pittsburgh, Monday, Nov. 12, 2012. (AP Photo/Gene J. Puskar)

Kansas City Chiefs running back Peyton Hillis (40) rushes the ball past Pittsburgh Steelers free safety Ryan Clark (25) and cornerback Keenan Lewis, bottom, in the second quarter of an NFL football game, Monday, Nov. 12, 2012, in Pittsburgh. (AP Photo/Don Wright)

Kansas City Chiefs quarterback Matt Cassel (7) scrambles as Pittsburgh Steelers inside linebacker Larry Foote (50) pursues in the second quarter of an NFL football game in Pittsburgh, Monday, Nov. 12, 2012. (AP Photo/Gene J. Puskar)

In this photo made with a fisheye lens, fireworks go off above Heinz Field as fans hold cards with a message honoring veterans before an NFL football game between the Pittsburgh Steelers and Kansas City Chiefs, Monday, Nov. 12, 2012, in Pittsburgh. (AP Photo/Keith Srakocic)

Pittsburgh Steelers quarterback Ben Roethlisberger, right, talks with wide receiver Mike Wallace (17) on the bench after Wallace caught a pass from Rothlisberger for a touchdown during the second quarter of an NFL football game against the Kansas City Chiefs in Pittsburgh, Monday, Nov. 12, 2012. (AP Photo/Gene J. Puskar)

Kansas City Chiefs defensive end Allen Bailey (97) holds the ball after recovering a fumble in the first quarter of an NFL football game against the Pittsburgh Steelers, Monday, Nov. 12, 2012, in Pittsburgh. (AP Photo/Don Wright)

Kansas City Chiefs quarterback Matt Cassel (7) tries to pass as Pittsburgh Steelers inside linebacker Lawrence Timmons (94) pressures in the second quarter of an NFL football game, Monday, Nov. 12, 2012, in Pittsburgh. (AP Photo/Don Wright)

Pittsburgh Steelers wide receiver Mike Wallace (17) gets up in front of Kansas City Chiefs cornerback Brandon Flowers, left, after making a catch for a touchdown in the second quarter of an NFL football game, Monday, Nov. 12, 2012, in Pittsburgh. (AP Photo/Don Wright)

Pittsburgh Steelers quarterback Ben Roethlisberger (7) is sacked by Kansas City Chiefs outside linebacker Tamba Hali (91) in the third quarter of an NFL football game, Monday, Nov. 12, 2012, in Pittsburgh. Roethlisberger left the game with a right shoulder injury. (AP Photo/Don Wright)

Pittsburgh Steelers quarterback Byron Leftwich (4) has his hand hit by Kansas City Chiefs outside linebacker Tamba Hali, left, as he throws in the third quarter of an NFL football game in Pittsburgh, Monday, Nov. 12, 2012. The Chiefs recovered the ball and went in for an apparent score, but it was overturned and the play was called an incomplete forward pass. (AP Photo/Gene J. Puskar)

Pittsburgh Steelers quarterback Ben Roethlisberger (7) sits on the bench in the first half of an NFL football game against the Kansas City Chiefs in Pittsburgh, Monday, Nov. 12, 2012. Roethlisberger left the game with a right shoulder injury. (AP Photo/Gene J. Puskar)

Pittsburgh Steelers quarterback Ben Roethlisberger (7) passes to running back Isaac Redman (33) in the first half of an NFL football game against the Kansas City Chiefs, Monday, Nov. 12, 2012, in Pittsburgh. The Steelers won 16-13 in overtime. Roethlisberger was injured in the third quarter and did not return to the game. (AP Photo/Don Wright)

Pittsburgh Steelers inside linebacker Lawrence Timmons (94) intercepts a pass in front of Kansas City Chiefs tight end Steve Maneri (87) in overtime of an NFL football game, Monday, Nov. 12, 2012, in Pittsburgh. The Steelers won 16-13. (AP Photo/Don Wright)

Pittsburgh Steelers kicker Shaun Suisham (6) makes a 23-yard field goal to defeat the Kansas City Chiefs 16-13 in overtime of an NFL football game in Pittsburgh, Monday, Nov. 12, 2012. (AP Photo/Gene J. Puskar)

In this photo taken with a fisheye lens, Pittsburgh Steelers offensive coordinator Todd Haley, former head coach of the Kansas City Chiefs, left, talks with Chiefs defensive tackle Shaun Smith, center, and running back Jamaal Charles (25) after an NFL football game in Pittsburgh, Monday, Nov. 12, 2012. The Steelers won 16-13 in overtime. (AP Photo/Gene J. Puskar)

Pittsburgh Steelers inside linebacker Lawrence Timmons (94) runs the ball after intercepting a pass in overtime of an NFL football game against the Kansas City Chiefs, Monday, Nov. 12, 2012, in Pittsburgh. The Steelers won 16-13. (AP Photo/Gene J. Puskar)

Pittsburgh Steelers kicker Shaun Suisham (6) watches his winning 23-yard field goal in overtime to defeat the Kansas City Chiefs 16-13 in an NFL football game, Monday, Nov. 12, 2012, in Pittsburgh. (AP Photo/Don Wright)

Kansas City Chiefs quarterback Matt Cassel (7) talks with Pittsburgh Steelers strong safety Troy Polamalu after an NFL football game in Pittsburgh, Monday, Nov. 12, 2012. The Steelers won 16-13 in overtime. (AP Photo/Gene J. Puskar)

In this photo taken with a fisheye lens, Pittsburgh Steelers wide receiver Mike Wallace (17) celebrates with fans as he heads to the locker room after an NFL football game against the Kansas City Chiefs in Pittsburgh, Monday, Nov. 12, 2012. The Steelers won 16-13 in overtime. (AP Photo/Gene J. Puskar)

FILE - This Nov. 12, 2012 file photo shows Pittsburgh Steelers quarterback Byron Leftwich (4) throwing against the Kansas City Chiefs during the third quarter of an NFL football game in Pittsburgh. The Steelers say Leftwich will start for injured quarterback Ben Roethlisberger in Sunday's Nov. 18, 2012, key matchup against the Baltimore Ravens. (AP Photo/Don Wright, File)

El quarterback de los Steelers de Pittsburgh, Ben Roethlisberger (7), es derribado por el linebacker Tamba Hali (91), de los Chiefs de Kansas City, en el tercer cuarto del partido en Pittsburgh, el lunes 12 de noviembre de 2012. Roethlisberger salió del encuentro debido a una lesión en el hombre derecho. Los Steelers ganaron 16-13. (AP Foto/Don Wright)

El quarterback de los Steelers de Pittsburgh, Ben Roethlisberger, izquierda, evade la presión de un defensor en un partido contra los Chiefs de Kansas City el lunes, 12 de noviembre de 2012, en Pittsburgh. (AP Photo/Gene J. Puskar)

FILE - In this Nov. 12, 2012, file photo, Pittsburgh Steelers outside linebacker James Harrison sits on the bench during an NFL football game against the Kansas City Chiefs in Pittsburgh. The Steelers released Harrison on Saturday, March 9, 2013, after the team and the hard-hitting defensive star who played on two Super Bowl champions failed to agree on a new contract. (AP Photo/Gene J. Puskar, File)