Minnesota Vikings quarterback Brett Favre (4) celebrates running back Toby Gerhart's touchdown during the second half of an NFL football game against the Washington Redskins in Landover, Md., Sunday, Nov. 28, 2010. (AP Photo/Pablo Martinez Monsivias)

Minnesota Vikings quarterback Brett Favre turns out of the pocket during the first half of an NFL football game against the Washington Redskins in Landover, Md., Sunday, Nov. 28, 2010. (AP Photo/Evan Vucci)

Washington Redskins tight end Fred Davis (86) pulls in a touchdown-pass under pressure from Minnesota Vikings safety Husain Abdullah during the first half of an NFL football game in Landover, Md., Sunday, Nov. 28, 2010. (AP Photo/Evan Vucci)

Washington Redskins tight end Fred Davis, right, celebrates his touchdown with teammate wide receiver Anthony Armstrong (13) during the first half of an NFL football game against the Minnesota Vikings in Landover, Md., Sunday, Nov. 28, 2010. (AP Photo/Evan Vucci)

Washington Redskins head coach Mike Shanahan watches the action on the field during the first half of an NFL football game against the Minnesota Vikings in Landover, Md., Sunday, Nov. 28, 2010. (AP Photo/Evan Vucci)

A Washington Redskins cheerleader performs during the first half of an NFL football game against the Minnesota Vikings in Landover, Md., Sunday, Nov. 28, 2010. (AP Photo/Evan Vucci)

A Minnesota Vikings fan cheers for this team before an NFL football game against the Washington Redskins in Landover, Md., Sunday, Nov. 28, 2010. (AP Photo/Evan Vucci)

Washington Redskins quarterback Donovan McNabb looks for an opening to pass during the first half of an NFL football game against the Minnesota Vikings in Landover, Md., Sunday, Nov. 28, 2010. (AP Photo/Evan Vucci)

Minnesota Vikings quarterback Brett Favre scrambles with the ball during the second half of an NFL football game against the Washington Redskins in Landover, Md., Sunday, Nov. 28, 2010. The Vikings defeated the Redskins 17-13. (AP Photo/Evan Vucci)

Minnesota Vikings quarterback Brett Favre (4) is sacked by Washington Redskins linebacker Andre Carter during the second half of an NFL football game in Landover, Md., Sunday, Nov. 28, 2010. (AP Photo/Pablo Martinez Monsivias)

Minnesota Vikings quarterback Brett Favre, left, hands off the ball to running back Toby Gerhart during the second half of an NFL football game against the Washington Redskins in Landover, Md., Sunday, Nov. 28, 2010. (AP Photo/Pablo Martinez Monsivais)

Minnesota Vikings linebacker Heath Farwell, top, intercepts a pass intended for Washington Redskins wide receiver Santana Moss (89) during the second half of an NFL football game in Landover, Md., Sunday, Nov. 28, 2010. (AP Photo/Pablo Martinez Monsivias)

Minnesota Vikings quarterback Brett Favre (4) greets Washington Redskins quarterback Donovan McNabb (5) after an NFL football game in Landover, Md., Sunday, Nov. 28, 2010. The Vikings won 17-13. (AP Photo/Evan Vucci)

Minnesota Vikings quarterback Brett Favre (4) celebrates with wide receiver Hank Baskett, right, after scrambling for a first down during the second half of an NFL football game against the Washington Redskins in Landover, Md., Sunday, Nov. 28, 2010. The Vikings won 17-13. (AP Photo/Evan Vucci)

Washington Redskins wide receiver Santana Moss carries the ball during the first half of an NFL football game against the Minnesota Vikings in Landover, Md., Sunday, Nov. 28, 2010. (AP Photo/Evan Vucci)

Washington Redskins linebacker Rocky McIntosh (52) reaches for Minnesota Vikings quarterback Brett Favre after Farve hit the turf after a short carry during the second half of an NFL football game in Landover, Md., Sunday, Nov. 28, 2010. The Vikings won 17-13. (AP Photo/Pablo Martinez Monsivais)

Washington Redskins quarterback Donovan McNabb passes during the first half of an NFL football game against the Minnesota Vikings in Landover, Md., Sunday, Nov. 28, 2010. (AP Photo/J. David Ake)

Washington Redskins tight end Chris Cooley carries the ball during the first half of an NFL football game against the Minnesota Vikings in Landover, Md., Sunday, Nov. 28, 2010. (AP Photo/Evan Vucci)

Minnesota Vikings running back Toby Gerhart is stopped by Washington Redskins linebacker London Fletcher during the first half of an NFL football game in Landover, Md., Sunday, Nov. 28, 2010. (AP Photo/Evan Vucci)

Minnesota Vikings quarterback Brett Favre passes during the first half of an NFL football game against the Minnesota Vikings in Landover, Md., Sunday, Nov. 28, 2010. (AP Photo/Pablo Martinez Monsivais)

Minnesota Vikings quarterback Brett Favre celebrates his scramble for a first down during the second half of an NFL football game against the Washington Redskins in Landover, Md., Sunday, Nov. 28, 2010. The Vikings won 17-13. (AP Photo/Pablo Martinez Monsivais)

Minnesota Vikings tight end Visanthe Shiancoe is upended by Washington Redskins linebacker Rocky McIntosh during the second half of an NFL football game in Landover, Md., Sunday, Nov. 28, 2010. The Vikings won 17-13. (AP Photo/Evan Vucci)

Minnesota Vikings quarterback Brett Favre passes during the first half of an NFL football game against the Washington Redskins in Landover, Md., Sunday, Nov. 28, 2010. (AP Photo/Evan Vucci)

Minnesota Vikings quarterback Brett Favre signals to the line during the first half of an NFL football game against the Washington Redskins in Landover, Md., Sunday, Nov. 28, 2010. (AP Photo/Evan Vucci)

Minnesota Vikings quarterback Brett Favre greets Washington Redskins quarterback Donovan McNabb after an NFL football game in Landover, Md., Sunday, Nov. 28, 2010. The Vikings won 17-13. (AP Photo/Evan Vucci)

Washington Redskins tight end Chris Cooley carries the ball during the first half of an NFL football game against the Minnesota Vikings in Landover, Md., Sunday, Nov. 28, 2010. (AP Photo/Evan Vucci)

Washington Redskins wide receiver Brandon Banks carries the ball during the first half of an NFL football game against the Minnesota Vikings in Landover, Md., Sunday, Nov. 28, 2010. (AP Photo/Evan Vucci)

Washington Redskins quarterback Donovan McNabb passes during the first half of an NFL football game against the Minnesota Vikings in Landover, Md., Sunday, Nov. 28, 2010. (AP Photo/Pablo Martinez Monsivais)

The Washington Redskins cheerleaders perform during the first half of an NFL football game against the Minnesota Vikings in Landover, Md., Sunday, Nov. 28, 2010. (AP Photo/Evan Vucci)

A Washington Redskins fan reacts during the first half of an NFL football game against the Minnesota Vikings in Landover, Md., Sunday, Nov. 28, 2010. (AP Photo/Pablo Martinez Monsivais)

Washington Redskins wide receiver Brandon Banks tries to stay inbounds under pressure from Minnesota Vikings punter Chris Kluwe during the first half of an NFL football game in Landover, Md., Sunday, Nov. 28, 2010. (AP Photo/Evan Vucci)

Washington Redskins quarterback Donovan McNabb (5) is sacked by Minnesota Vikings defensive end Brian Robison during the second half of an NFL football game in Landover, Md., Sunday, Nov. 28, 2010. The Vikings defeated the Redskins 17-13. (AP Photo/Pablo Martinez Monsivais)

Minnesota Vikings safety Madieu Williams, right, breaks up a pass intended for Washington Redskins wide receiver Anthony Armstrong, left, during the second half of an NFL football game in Landover, Md., Sunday, Nov. 28, 2010. The Vikings won 17-13. (AP Photo/Evan Vucci)

Washington Redskins cornerback Kevin Barnes reaches for Minnesota Vikings wide receiver Percy Harvin during the second half of an NFL football game in Landover, Md., Sunday, Nov. 28, 2010. (AP Photo/Pablo Martinez Monsivais)

Washington Redskins quarterback Donovan McNabb passes during the second half of an NFL football game against the Minnesota Vikings in Landover, Md., Sunday, Nov. 28, 2010. (AP Photo/Evan Vucci)

Washington Redskins safety Reed Doughty looks at Minnesota Vikings wide receiver Sidney Rice during the second half of an NFL football game in Landover, Md., Sunday, Nov. 28, 2010. (AP Photo/Evan Vucci)

Washington Redskins wide receiver Santana Moss is held down by Minnesota Vikings linebacker E.J. Henderson (56), cornerback Antoine Winfield (26) and defensive tackle Pat Williams (94) during the second half of an NFL football game in Landover, Md., Sunday, Nov. 28, 2010. (AP Photo/Pablo Martinez Monsivais)

Washington Redskins running back Keiland Williams carries the ball during the second half of an NFL football game against the Minnesota Vikings in Landover, Md., Sunday, Nov. 28, 2010. (AP Photo/Evan Vucci)

Washington Redskins quarterback Donovan McNabb (5) is sacked by Minnesota Vikings defensive end Brian Robison during the second half of an NFL football game in Landover, Md., Sunday, Nov. 28, 2010. The Vikings defeated the Redskins 17-13. (AP Photo/Pablo Martinez Monsivais)

Minnesota Vikings wide receiver Percy Harvin carries the ball during the second half of an NFL football game against the Washington Redskins in Landover, Md., Sunday, Nov. 28, 2010. (AP Photo/Pablo Martinez Monsivais)

Minnesota Vikings quarterback Brett Favre hands off to running back Toby Gerhart during the second half of an NFL football game against the Washington Redskins in Landover, Md., Sunday, Nov. 28, 2010. The Vikings won 17-13. (AP Photo/Pablo Martinez Monsivais)

Minnesota Vikings quarterback Brett Favre hands off the ball during the second half of an NFL football game against the Washington Redskins in Landover, Md., Sunday, Nov. 28, 2010. (AP Photo/Evan Vucci)

Minnesota Vikings cornerback Asher Allen pulls Washington Redskins running back Keiland Williams down during the second half of an NFL football game in Landover, Md., Sunday, Nov. 28, 2010. (AP Photo/Evan Vucci)

Minnesota Vikings wide receiver Percy Harvin carries the ball during the second half of an NFL football game against the Washington Redskins in Landover, Md., Sunday, Nov. 28, 2010. (AP Photo/Pablo Martinez Monsivais)

Minnesota Vikings running back Toby Gerhart carries the ball during the second half of an NFL football game against the Washington Redskins in Landover, Md., Sunday, Nov. 28, 2010. (AP Photo/Pablo Martinez Monsivais)

Minnesota Vikings running back Adrian Peterson (28) scores a touchdown as Washington Redskins safety Reed Doughty hangs on during the first half of an NFL football game in Landover, Md., Sunday, Nov. 28, 2010. (AP Photo/Pablo Martinez Monsivias)