San Francisco 49ers tight end Vernon Davis (85) celebrates his touchdown with teammate Anthony Davis, right, as quarterback Alex Smith (11) is congratulated by Joe Staley in the third quarter of an NFL football game against the Pittsburgh Steelers in San Francisco, Monday, Dec. 19, 2011. (AP Photo/Paul Sakuma)

San Francisco 49ers cornerback Carlos Rogers (22) intercepts a pass intended for Pittsburgh Steelers wide receiver Mike Wallace (17) in the first quarter of an NFL football game in San Francisco, Monday, Dec. 19, 2011. (AP Photo/Marcio Jose Sanchez)

Pittsburgh Steelers wide receiver Mike Wallace (17) runs after a reception as San Francisco 49ers safety Reggie Smith (30) dives during the first quarter of an NFL football game in San Francisco, Monday, Dec. 19, 2011. (AP Photo/Marcio Jose Sanchez)

Fans and officials wait at Candlestick Park during a power outage before an NFL football game between the San Francisco 49ers and the Pittsburgh Steelers in San Francisco, Monday, Dec. 19, 2011. (AP Photo/Marcio Jose Sanchez)

Fans and officials wait at Candlestick Park during a power outage before an NFL football game between the San Francisco 49ers and the Pittsburgh Steelers in San Francisco, Monday, Dec. 19, 2011. (AP Photo/Marcio Jose Sanchez)

Fans stand at Candlestick Park after a power outage before an NFL football game between the San Francisco 49ers and the Pittsburgh Steelers in San Francisco, Monday, Dec. 19, 2011. (AP Photo/Jeff Chiu)

Fans and officials wait in Candlestick Park stadium during a power outage before an NFL football game between the San Francisco 49ers and the Pittsburgh Steelers in San Francisco, Monday, Dec. 19, 2011. (AP Photo/Marcio Jose Sanchez)

Candlestick Park is dimly lit during a power outage before an NFL football game between the San Francisco 49ers and the Pittsburgh Steelers in San Francisco, Monday, Dec. 19, 2011. (AP Photo/Jeff Chiu)

Candlestick Park is dimly lit during a power outage before an NFL football game between the San Francisco 49ers and the Pittsburgh Steelers in San Francisco, Monday, Dec. 19, 2011. (AP Photo/Jeff Chiu)

San Francisco 49ers safety Dashon Goldson, left, gets ready to intercept a pass to Pittsburgh Steelers tight end Heath Miller (83) in the first quarter of an NFL football game in San Francisco, Monday, Dec. 19, 2011. (AP Photo/Marcio Jose Sanchez)

San Francisco 49ers safety Dashon Goldson (38) picks off a pass intended for Pittsburgh Steelers tight end Heath Miller in the first quarter of an NFL football game in San Francisco, Monday, Dec. 19, 2011. (AP Photo/Marcio Jose Sanchez)

San Francisco police officers stand on the field during a power outage during the second quarter of an NFL football game between the San Francisco 49ers and the Pittsburgh Steelers in San Francisco, Monday, Dec. 19, 2011. (AP Photo/Marcio Jose Sanchez)

San Francisco 49ers players sit on the bench during a power outage during the second quarter of the 49ers' NFL football game against the Pittsburgh Steelers in San Francisco, Monday, Dec. 19, 2011. (AP Photo/Paul Sakuma)

The Pittsburgh Steelers' offense and the San Francisco 49ers' defense stand on the field during a power outage during the second quarter of an NFL football game in San Francisco, Monday, Dec. 19, 2011. (AP Photo/Marcio Jose Sanchez)

The Pittsburgh Steelers and the San Francisco 49ers wait on the field during a second round of power outages, during the second quarter of an NFL football game in San Francisco, Monday, Dec. 19, 2011. (AP Photo/Paul Sakuma)

Members of the Pittsburgh Steelers wait on the field during a second power outage, in the second quarter of the Steelers' NFL football game against the San Francisco 49ers in San Francisco, Monday, Dec. 19, 2011. (AP Photo/Marcio Jose Sanchez)

San Francisco 49ers' David Akers (2) kicks a 38-yard field goal from the hold of punter Andy Lee during the second quarter against the Pittsburgh Steelers in an NFL football game in San Francisco, Monday, Dec. 19, 2011. (AP Photo/Marcio Jose Sanchez)

Dec 19, 2011; San Francisco, CA, USA; San Francisco 49ers wide receiver Michael Crabtree (15) is pushed out of bounds by Pittsburgh Steelers strong safety Troy Polamalu (43) during the first quarter at Candlestick Park. Mandatory Credit: Jason O. Watson-US PRESSWIRE

San Francisco 49ers quarterback Alex Smith (11) passes as Pittsburgh Steelers defensive end Brett Keisel (99) tries to block the pass during the second quarter of an NFL football game in San Francisco, Monday, Dec. 19, 2011. (AP Photo/Paul Sakuma)

Dec 19, 2011; San Francisco, CA, USA; San Francisco 49ers gold rush cheerleaders perform during the game against the Pittsburgh Steelers at Candlestick Park. Mandatory Credit: Kirby Lee/Image of Sport-US PRESSWIRE

Dec 19, 2011; San Francisco, CA, USA; San Francisco 49ers gold rush cheerleaders perform during the game against the Pittsburgh Steelers at Candlestick Park. Mandatory Credit: Kirby Lee/Image of Sport-US PRESSWIRE

Pittsburgh Steelers quarterback Ben Roethlisberger (7) passes against the San Francisco 49ers during the first half of an NFL football game in San Francisco, Monday, Dec. 19, 2011. (AP Photo/Paul Sakuma)

San Francisco 49ers linebacker NaVorro Bowman (53) moves in to tackle Pittsburgh Steelers running back Jonathan Dwyer (27) in the third quarter of an NFL football game in San Francisco, Monday, Dec. 19, 2011. (AP Photo/Marcio Jose Sanchez)

Pittsburgh Steelers coach Mike Tomlin stands on the sideline during the third quarter of an NFL football game against the San Francisco 49ers in San Francisco, Monday, Dec. 19, 2011. (AP Photo/Marcio Jose Sanchez)

San Francisco 49ers tight end Vernon Davis (85) dives into the end zone past Pittsburgh Steelers linebacker Lawrence Timmons (94), but was ruled out of bounds at the 1-yard line during the third quarter of an NFL football game in San Francisco, Monday, Dec. 19, 2011. (AP Photo/Marcio Jose Sanchez)

Pittsburgh Steelers' Shaun Suisham (6) kicks a field goal as Jeremy Kapinos holds in the third quarter of an NFL football game against the San Francisco 49ers in San Francisco, Monday, Dec. 19, 2011. (AP Photo/Paul Sakuma)

San Francisco 49ers running back Frank Gore (21) tries to get past Pittsburgh Steelers linebacker Lawrence Timmons (94) during the third quarter of an NFL football game in San Francisco, Monday, Dec. 19, 2011. (AP Photo/Marcio Jose Sanchez)

Pittsburgh Steelers running back Rashard Mendenhall (34) runs against the San Francisco 49ers during the third quarter of an NFL football game in San Francisco, Monday, Dec. 19, 2011. (AP Photo/Marcio Jose Sanchez)

Pittsburgh Steelers quarterback Ben Roethlisberger (7) walks off the field past San Francisco 49ers running back Frank Gore (21) after an NFL football game in San Francisco, Monday, Dec. 19, 2011. The 49ers won 20-3. (AP Photo/Marcio Jose Sanchez)

Pittsburgh Steelers offensive tackle Jonathan Scott (72) and teammates sit on the bench during the fourth quarter of an NFL football game against the San Francisco 49ers in San Francisco, Monday, Dec. 19, 2011. (AP Photo/Marcio Jose Sanchez)

Pittsburgh Steelers quarterback Ben Roethlisberger (7) stands on the sidelines against the San Francisco 49ers during the fourth quarter of an NFL football game in San Francisco, Monday, Dec. 19, 2011. (AP Photo/Marcio Jose Sanchez)

San Francisco 49ers tight end Vernon Davis (85) dives into the end zone past Pittsburgh Steelers outside linebacker Jason Worilds (93), but was ruled out of bounds at the 1-yard line during the third quarter of an NFL football game in San Francisco, Monday, Dec. 19, 2011.(AP Photo/Paul Sakuma)

Pittsburgh Steelers quarterback Ben Roethlisberger (7) is sacked by San Francisco 49ers linebacker Aldon Smith (99) during the fourth quarter of an NFL football game in San Francisco, Monday, Dec. 19, 2011. (AP Photo/Paul Sakuma)

Pittsburgh Steelers quarterback Ben Roethlisberger (7) rolls on the field after being hit against the San Francisco 49ers during the fourth quarter of an NFL football game in San Francisco, Monday, Dec. 19, 2011. (AP Photo/Paul Sakuma)

Dec 19, 2011; San Francisco, CA, USA; Pittsburgh Steelers running back Rashard Mendenhall (34) flips off the ground after being tackled against the San Francisco 49ers during the third quarter at Candlestick Park. Mandatory Credit: Jason O. Watson-US PRESSWIRE

Pittsburgh Steelers quarterback Ben Roethlisberger (7) meets with tackle Max Starks, left, and tackle Marcus Gilbert (77) after being sacked by San Francisco 49ers linebacker Aldon Smith during the fourth quarter of an NFL football game in San Francisco, Monday, Dec. 19, 2011. (AP Photo/Paul Sakuma)

San Francisco 49ers defensive tackle Justin Smith (94) recovers a fumble by Pittsburgh Steelers quarterback Ben Roethlisberger (7) after a sack by linebacker Aldon Smith and defensive tackle Ray McDonald during the fourth quarter of an NFL football game in San Francisco, Monday, Dec. 19, 2011. (AP Photo/Paul Sakuma)

Pittsburgh Steelers quarterback Ben Roethlisberger (7) gets sacked by San Francisco 49ers linebacker Aldon Smith (99) and Ray McDonald in the fourth quarter of an NFL football game against the Pittsburgh Steelers in San Francisco, Monday, Dec. 19, 2011. San Francisco 49ers defensive tackle Justin Smith (94) recovered the fumble. (AP Photo/Marcio Jose Sanchez)

Pittsburgh Steelers quarterback Ben Roethlisberger (7) gets sacked by San Francisco 49ers linebacker Aldon Smith (99) and Ray McDonald (not seen) in the fourth quarter of an NFL football game against the Pittsburgh Steelers in San Francisco, Monday, Dec. 19, 2011. (AP Photo/Marcio Jose Sanchez)

Pittsburgh Steelers running back Rashard Mendenhall (34) carries the ball in the fourth quarter of an NFL football game against the San Francisco 49ers in San Francisco, Monday, Dec. 19, 2011. (AP Photo/Marcio Jose Sanchez)

San Francisco 49ers running back Frank Gore (21) scores on a 5-yard touchdown run in front of Pittsburgh Steelers inside linebacker James Farrior (51) during the fourth quarter of an NFL football game in San Francisco, Monday, Dec. 19, 2011. (AP Photo/Paul Sakuma)

Pittsburgh Steelers quarterback Ben Roethlisberge lies on the ground after being sacked by San Francisco 49ers linebacker Aldon Smith and defensive tackle Ray McDonald and losing a fumble to defensive tackle Justin Smith during the fourth quarter of an NFL football game in San Francisco, Monday, Dec. 19, 2011. (AP Photo/Paul Sakuma)

San Francisco 49ers running back Frank Gore (21) runs against the Pittsburgh Steelers during the third quarter of an NFL football game in San Francisco, Monday, Dec. 19, 2011. (AP Photo/Paul Sakuma)

Pittsburgh Steelers' Shaun Suisham, foreground, reacts after missing a 48-yard field goal as San Francisco 49ers' Tarell Brown (25) celebrates during the third quarter of an NFL football game in San Francisco, Monday, Dec. 19, 2011. (AP Photo/Paul Sakuma)

San Francisco 49ers coach Jim Harbaugh confers with quarterback Alex Smith in the third quarter of an NFL football game against the Pittsburgh Steelers in San Francisco, Monday, Dec. 19, 2011. (AP Photo/Paul Sakuma)

San Francisco 49ers tight end Vernon Davis (85) makes a 1-yard touchdown catch in the third quarter of an NFL football game against the Pittsburgh Steelers in San Francisco, Monday, Dec. 19, 2011. (AP Photo/Paul Sakuma)

Pittsburgh Steelers quarterback Ben Roethlisberger passes against the San Francisco 49ers during the third quarter of an NFL football game in San Francisco, Monday, Dec. 19, 2011. (AP Photo/Marcio Jose Sanchez)

Dec 19, 2011; San Francisco, CA, USA; San Francisco 49ers gold rush cheerleaders perform in Christmas costumes during the game against the Pittsburgh Steelers at Candlestick Park. Mandatory Credit: Kirby Lee/Image of Sport-US PRESSWIRE

Dec 19, 2011; San Francisco, CA, USA; San Francisco 49ers gold rush cheerleaders perform during the game against the Pittsburgh Steelers at Candlestick Park. Mandatory Credit: Kirby Lee/Image of Sport-US PRESSWIRE

December 19, 2011; San Francisco, CA, USA; San Francisco 49ers tight end Vernon Davis (85) dives into the end zone in front of Pittsburgh Steelers linebacker Jason Worilds (93) and linebacker Lawrence Timmons (94) after making a catch in the third quarter at Candlestick Park. Davis was called out at the one yard line. Mandatory Credit: Cary Edmondson-US PRESSWIRE