San Francisco 49ers linebacker Patrick Willis walks off the field after an NFL football game against the New York Giants in San Francisco, Sunday, Nov. 13, 2011. The 49ers won 27-20. (AP Photo/Marcio Jose Sanchez)

13 November 2011: Giants quarterback Eli Manning (10) during the NFL regular season game between the New York Giants and the San Francisco 49ers at Candlestick Park in San Francisco, CA.

13 November 2011: Cheerleader during the NFL regular season game between the New York Giants and the San Francisco 49ers at Candlestick Park in San Francisco, CA.

13 November 2011: Giants wide receiver Hakeem Nicks (88)celebrates his touchdown catch during the NFL regular season game between the New York Giants and the San Francisco 49ers at Candlestick Park in San Francisco, CA.

13 November 2011: San Francisco 49ers wide receiver Michael Crabtree (15) during the NFL regular season game between the New York Giants and the San Francisco 49ers at Candlestick Park in San Francisco, CA.

13 November 2011: Giants fan with "ELI-te Manning NY" sign during the NFL regular season game between the New York Giants and the San Francisco 49ers at Candlestick Park in San Francisco, CA.

13 November 2011: San Francisco 49ers quarterback Alex Smith (11) during the NFL regular season game between the New York Giants and the San Francisco 49ers at Candlestick Park in San Francisco, CA.

13 November 2011: Giants quarterback Eli Manning (10) during the NFL regular season game between the New York Giants and the San Francisco 49ers at Candlestick Park in San Francisco, CA.

13 November 2011: San Francisco 49ers strong safety Donte Whitner (31) tips the pass intended for Giants Victor Cruz (80) as San Francisco 49ers cornerback Carlos Rogers (22) attempts to catch the ball during the NFL regular season game between the New York Giants and the San Francisco 49ers at Candlestick Park in San Francisco, CA.

13 November 2011: Giants quarterback Eli Manning (10) during the NFL regular season game between the New York Giants and the San Francisco 49ers at Candlestick Park in San Francisco, CA.

13 November 2011: San Francisco 49ers quarterback Alex Smith (11) is sacked during the NFL regular season game between the New York Giants and the San Francisco 49ers at Candlestick Park in San Francisco, CA.

13 November 2011: Giants quarterback Eli Manning (10) is tackled by San Francisco 49ers inside linebacker Patrick Willis (52) during the NFL regular season game between the New York Giants and the San Francisco 49ers at Candlestick Park in San Francisco, CA.

13 November 2011: San Francisco 49ers inside linebacker Patrick Willis (52) during the NFL regular season game between the New York Giants and the San Francisco 49ers at Candlestick Park in San Francisco, CA.

13 November 2011: Giants quarterback Eli Manning (10) during the NFL regular season game between the New York Giants and the San Francisco 49ers at Candlestick Park in San Francisco, CA.

New York Giants tight end Bear Pascoe (86) carries the ball as San Francisco 49ers linebacker NaVorro Bowman (53) moves in to tackle in the first quarter of an NFL football game in San Francisco, Sunday, Nov. 13, 2011. At left is 49ers linebacker Parys Haralson. (AP Photo/Ben Margot)

San Francisco 49ers running back Frank Gore (21) carreis against New York Giants outside linebacker Mathias Kiwanuka (94) in the first quarter of an NFL football game in San Francisco, Sunday, Nov. 13, 2011. (AP Photo/Marcio Jose Sanchez)

New York Giants wide receiver Mario Manningham (82) catches a pass in front of San Francisco 49ers cornerback Tarell Brown (25) in the second quarter of an NFL football game in San Francisco, Sunday, Nov. 13, 2011. (AP Photo/Marcio Jose Sanchez)

San Francisco 49ers quarterback Alex Smith passes against the New York Giants in the second quarter of an NFL football game in San Francisco, Sunday, Nov. 13, 2011. (AP Photo/Marcio Jose Sanchez)

New York Giants cornerback Corey Webster (23) runs with an interception as San Francisco 49ers wide receiver Ted Ginn Jr. (19) grabs his leg in the second quarter of an NFL football game in San Francisco, Sunday, Nov. 13, 2011. (AP Photo/Marcio Jose Sanchez)

New York Giants quarterback Eli Manning passes against the San Francisco 49ers in the first quarter of an NFL football game in San Francisco, Sunday, Nov. 13, 2011. (AP Photo/Marcio Jose Sanchez)

San Francisco 49ers tight end Delanie Walker (46) is congratulated after recovering an onside kick against the New York Giants in the second quarter of an NFL football game in San Francisco, Sunday, Nov. 13, 2011. (AP Photo/Marcio Jose Sanchez)

San Francisco 49ers running back Frank Gore (21) carries the ball in the second quarter as New York Giants safety Kenny Phillips (21), middle linebacker Greg Jones (53) and defensive end Jason Pierre-Paul, second from right, go in for the tackle during an NFL football game in San Francisco, Sunday, Nov. 13, 2011. (AP Photo/Marcio Jose Sanchez)

San Francisco 49ers tight end Vernon Davis (85) runs with a reception against New York Giants free safety Antrel Rolle (26) in the second quarter of an NFL football game in San Francisco, Sunday, Nov. 13, 2011. (AP Photo/Marcio Jose Sanchez)

San Francisco 49ers' David Akers (2) reacts after making a field goal in the second quarter of an NFL football game against the New York Giants in San Francisco, Sunday, Nov. 13, 2011. (AP Photo/Marcio Jose Sanchez)

New York Giants quarterback Eli Manning (10) is sacked by San Francisco 49ers linebacker Patrick Willis (52) in the third quarter of an NFL football game in San Francisco, Sunday, Nov. 13, 2011. (AP Photo/Marcio Jose Sanchez)

San Francisco 49ers tight end Delanie Walker (46) is tackled by New York Giants cornerback Corey Webster in the third quarter of an NFL football game in San Francisco, Sunday, Nov. 13, 2011. (AP Photo/Marcio Jose Sanchez)

New York Giants wide receiver Mario Manningham makes a touchdown catch in the end zone in the third quarter of an NFL football game against the San Francisco 49ers in San Francisco, Sunday, Nov. 13, 2011. (AP Photo/Ben Margot)

New York Giants wide receiver Victor Cruz catches a 36-yard pass from quarterback Eli Manning in the third quarter of an NFL football game against the San Francisco 49ers in San Francisco, Sunday, Nov. 13, 2011. (AP Photo/Marcio Jose Sanchez)

San Francisco 49ers cornerback Carlos Rogers (22) runs with the ball after intercepting a pass in the fourth quarter of an NFL football game against the New York Giants in San Francisco, Sunday, Nov. 13, 2011. Cornerback Tarell Brown (25) and safety Dashon Goldson (38) look to block. (AP Photo/Marcio Jose Sanchez)

San Francisco 49ers running back Kendall Hunter (32) scores on a 17-yard touchdown run past New York Giants linebacker Spencer Paysinger (55) in the fourth quarter of an NFL football game in San Francisco, Sunday, Nov. 13, 2011. (AP Photo/Marcio Jose Sanchez)

San Francisco 49ers tight end Vernon Davis (85) scores on a 31-yard touchdown pass from quarterback Alex Smith, as New York Giants strong safety Kenny Phillips (21)defends in the fourth quarter of an NFL football game in San Francisco, Sunday, Nov. 13, 2011. (AP Photo/Marcio Jose Sanchez)

San Francisco 49ers tight end Vernon Davis (85) scores on a 31-yard touchdown pass from quarterback Alex Smith over New York Giants strong safety Kenny Phillips (21) in the fourth quarter of an NFL football game in San Francisco, Sunday, Nov. 13, 2011. (AP Photo/Marcio Jose Sanchez)

San Francisco 49ers coach Jim Harbaugh gestures in the fourth quarter of an NFL football game against the New York Giants in San Francisco, Sunday, Nov. 13, 2011. (AP Photo/Marcio Jose Sanchez)

San Francisco 49ers quarterback Alex Smith (11) slaps hands with New York Giants defensive end Justin Tuck (91) at the end of an NFL football game in San Francisco, Sunday, Nov. 13, 2011. The 49ers beat the Giants 27-20. (AP Photo/Ben Margot)

New York Giants quarterback Eli Manning (10) walks off the field after an NFL football game against the San Francisco 49ers in San Francisco, Sunday, Nov. 13, 2011. The 49ers won 27-20. (AP Photo/Marcio Jose Sanchez)

New York Giants quarterback Eli Manning (10) gets up after he was tackled by San Francisco 49ers linebacker Patrick Willis (52) in the final minutes of an NFL football game in San Francisco, Sunday, Nov. 13, 2011. With Willis is linebacker Ahmad Brooks (55). San Francisco won 27-20. (AP Photo/Ben Margot)

New York Giants wide receiver Mario Manningham cannot catch a pass from quarterback Eli Manning in the fourth quarter of an NFL football game against the San Francisco 49ers in San Francisco, Sunday, Nov. 13, 2011. The 49ers won 27-20. (AP Photo/Marcio Jose Sanchez)

San Francisco 49ers quarterback Alex Smith (11) and offensive tackle Joe Staley (74) celebrate after the 49ers scored against the New York Giants in the fourth quarter of an NFL football game in San Francisco, Sunday, Nov. 13, 2011. (AP Photo/Marcio Jose Sanchez)

San Francisco 49ers running back Kendall Hunter, right, celebrates with offensive tackle Adam Snyder (68) after scoring on a 17-yard touchdown run against the New York Giants in the fourth quarter of an NFL football game in San Francisco, Sunday, Nov. 13, 2011. (AP Photo/Marcio Jose Sanchez)

San Francisco 49ers coach Jim Harbaugh gestures in the fourth quarter of an NFL football game against the New York Giants in San Francisco, Sunday, Nov. 13, 2011. (AP Photo/Marcio Jose Sanchez)

San Francisco 49ers wide receiver Michael Crabtree (15) celebrates a 2-point conversion with teammate Delanie Walker in the fourth quarter of an NFL football game against the New York Giants in San Francisco, Sunday, Nov. 13, 2011. The 49ers won 27-20. (AP Photo/Ben Margot)

New York Giants coach Tom Coughlin argues a call in the fourth quarter of an NFL football game against the San Francisco 49ers in San Francisco, Sunday, Nov. 13, 2011. At left is field judge Gary Cavaletto. The 49ers won 27-20. (AP Photo/Ben Margot)