Minnesota Vikings quarterback Brett Favre hands off during the Baltimore Ravens NFL football game Sunday, Oct. 18, 2009 in Minneapolis. (AP Photo/Jim Mone)

Minnesota Vikings wide receiver Percy Harvin fields balls from Vikings kicker Ryan Longwell prior to their NFL football game against the Baltimore Ravens, Sunday, Oct. 18, 2009, in Minneapolis.(AP Photo/Tom Olmscheid)

Baltimore Ravens quarterback Joe Flacco looks to pass against the Minnesota Vikings during the first half of an NFL football game, Sunday, Oct. 18, 2008, in Minneapolis. (AP Photo/Paul Battaglia)

Minnesota Vikings running back Adrian Peterson (28) breaks the tackle of Baltimore Ravens safety Dawan Landry (26) while running for 26 yards during the first half of an NFL football game, Sunday, Oct. 18, 2008, in Minneapolis. (AP Photo/Paul Battaglia)

Minnesota Vikings running back Adrian Peterson (28) eludes Baltimore Ravens safety Ed Reed while running for a first down in the first quarter of an NFL football game Sunday, Oct. 18, 2009, in Minneapolis. (AP Photo/Jim Mone)

Minnesota Vikings tight end Visanthe Shiancoe (81) catches a 19-yard touchdown pass against the Baltimore Ravens during the first half of an NFL football game, Sunday, Oct. 18, 2008, in Minneapolis. (AP Photo/Paul Battaglia)

Minnesota Vikings running back Adrian Peterson runs for yardage against the Baltimore Ravens during the second quarter of a NFL football game Sunday, Oct. 18, 2009, in Minneapolis. (AP Photo/Tom Olmscheid)

Minnesota Vikings quarterback Brett Favre is shown during an NFL football game between the Baltimore Ravens and the Vikings Sunday, Oct. 18, 2009 in Minneapolis. (AP Photo/Jim Mone)

Baltimore Ravens quarterback Joe Flacco is shown during an NFL football game between the Ravens and the Minnesota Vikings Sunday, Oct. 18, 2009 in Minneapolis. (AP Photo/Jim Mone)

Minnesota Vikings wide receiver Percy Harvin returns the opening kickoff by the Baltimore Ravens in an NFL football game Sunday, Oct. 18, 2009 in Minneapolis. (AP Photo/Jim Mone)

Minnesota Vikings quarterback Brett Favre, right, and wide receiver Sidney Rice, left, celebrate after Favre's four-yard touchdown-pass to Vikings wide receiver Bernard Berrian during an NFL football game against the Baltimore Ravens, Sunday, Oct. 18, 2009, in Minneapolis. (AP Photo/Tom Olmscheid)

Baltimore Ravens holder Sam Koch, left, reacts after Ravens' kicker Steve Hauschka, (6) missed a 44-yard field goal with two seconds left on the clock during the fourth quarter of an NFL football game Sunday, Oct. 18, 2009, in Minneapolis. Minnesota won 33-31. (AP Photo/Tom Olmscheid)

Minnesota Vikings' Ryan Longwell, right, kicks the game-winning field goal as teammate Chris Kluwe holds during the fourth quarter against the Baltimore Ravens in an NFL football game Sunday, Oct. 18, 2009, in Minneapolis. Minnesota won 33-31. (AP Photo/Tom Olmscheid)

Baltimore Ravens running back Ray Rice runs against the Minnesota Vikings during the fourth quarter of an NFL football game Sunday, Oct. 18, 2009, in Minneapolis. Minnesota won 33-31. (AP Photo/Tom Olmscheid)

Baltimore Ravens quarterback Joe Flacco (5) is sacked by Minnesota Vikings defensive end Jared Allen (69) during the second half of an NFL football game, Sunday, Oct. 18, 2008, in Minneapolis. The Vikings won 33-31. (AP Photo/Paul Battaglia)

Minnesota Vikings wide receiver Sidney Rice, bottom, holds on to a 58-yard pass from Vikings quarterback Brett Favre as Baltimore Ravens cornerback Frank Walker, top, brings Rice to the ground during the fourth quarter of an NFL football game Sunday, Oct. 18, 2009, in Minneapolis. Minnesota won 33-31. (AP Photo/Tom Olmscheid)

Minnesota Vikings running back Adrian Peterson races 58 yards in the fourth quarter of an NFL football against the Baltimore Ravens game Sunday, Oct. 18, 2009, in Minneapolis. Peterson rushed for 143 yards in the Vikings' 33-31 win. (AP Photo/Jim Mone)

Minnesota Vikings defensive end Jared Allen, top, sacks Baltimore Ravens quarterback Joe Flacco, bottom, during the fourth quarter of an NFL football game Sunday, Oct. 18, 2009, in Minneapolis. Minnesota won 33-31. (AP Photo/Tom Olmscheid)

Minnesota Vikings wide receiver Sidney Rice races 63 yards on a pass from quarterback Brett Favre in the third quarter of an NFL football game against the Baltimore Ravens, Sunday, Oct. 18, 2009, in Minneapolis. Rice had six receptions for 176 yards in the Vikings' 33-31 win. (AP Photo/Jim Mone)

Baltimore Ravens cornerback Frank Walker (41) breaks up a deep Brett Favre pass to Minnesota Vikings Bernard Berrian in the fourth quarter of an NFL football game Sunday, Oct. 18, 2009, in Minneapolis. Walker was charged with pass interference. The Vikings won 33-31. (AP Photo/Jim Mone)

Baltimore Ravens kicker Steven Hauschka (6) misses a 44-yard field goal with two seconds left on the clock against the Minnesota Vikings during the second half in an NFL football game, Sunday, Oct. 18, 2008, in Minneapolis. Ravens' Sam Koch (4) holds on the play. The Vikings won 33-31. (AP Photo/Paul Battaglia)

Minnesota Vikings' Adrian Peterson, top, and the Vikings bench watch Baltimore Ravens' Ray Rice run for a 33-yard touchdown during the fourth quarter of an NFL football game Sunday, Oct. 18, 2009, in Minneapolis. Minnesota won 33-31. (AP Photo/Tom Olmscheid)

Minnesota Vikings quarterback Brett Favre (4) hugs a member of the team's staff as he leaves the field after the Vikings defeated the Baltimore Ravens 33-31 in an NFL football game, Sunday, Oct. 18, 2008, in Minneapolis. (AP Photo/Paul Battaglia)

Baltimore Ravens wide receiver Mark Clayton (89) celebrates his 32-yard touchdown reception from quarterback Joe Flacco in the fourth quarter of an NFL football game Sunday, Oct. 18, 2009, in Minneapolis. The Vikings won 33-31. (AP Photo/Jim Mone)

Minnesota Vikings quarterback Brett Favre after throwing a touchdown pass against the Baltimore Ravens during the fourth quarter of an NFL football game Sunday, Oct. 18, 2009, in Minneapolis. (AP Photo/Tom Olmscheid)

Baltimore Ravens running back Ray Rice scores on a 22-yard run against the Minnesota Vikings during the second half in an NFL football game, Sunday, Oct. 18, 2008, in Minneapolis. The Vikings won 33-31. (AP Photo/Paul Battaglia)

Minnesota Vikings running back Adrian Peterson (28) eludes an attempted tackle by Baltimore Ravens safety Ed Reed (20) in the fourth quarter while racing 58 yards in an NFL football game Sunday, Oct. 18, 2009, in Minneapolis. The Vikings won 33-31. (AP Photo/Jim Mone)

Baltimore Ravens running back Ray Rice (27) runs for eight yards after a short catch against the Minnesota Vikings during the first half of an NFL football game, Sunday, Oct. 18, 2008, in Minneapolis. Rice had 117 yards receiving and 77 yards rushing during the game as the Vikings won 33-31. (AP Photo/Paul Battaglia)

Minnesota Vikings running back Adrian Peterson, right, is pushed out of bounds by Balitmore Ravens safety Dawan Landry, left, during aNFL football game Sunday, Oct. 18, 2009, in Minneapolis.(AP Photo/Tom Olmscheid)

Minnesota Vikings defensive tackle Jimmy Kennedy, left, presures Baltimore Ravens quarterback Joe Flacco, right, during a NFL football game Sunday, Oct. 18, 2009, in Minneapolis.(AP Photo/Tom Olmscheid)

Minnesota Vikings running back Adrian Peterson is shown against the Baltimore Ravens in an NFL football game Sunday, Oct. 18, 2009 in Minneapolis. (AP Photo/Jim Mone)

Minnesota Vikings quarterback Brett Favre is shown against the Baltimore Ravens in an NFL football game Sunday, Oct. 18, 2009 in Minneapolis. (AP Photo/Jim Mone)

Minnesota Vikings quarterback Brett Favre watches during a game against the Baltimore Ravens in a NFL football game Sunday, Oct. 18, 2009, in Minneapolis.(AP Photo/Tom Olmscheid)

Minnesota Vikings cheerleaders celebrate with Vikings fans during a game against the Baltimore Ravens in a NFL football game Sunday, Oct. 18, 2009, in Minneapolis.(AP Photo/Tom Olmscheid)

Minnesota Vikings cheerleader during a game against the Baltimore Ravens in a NFL football game Sunday, Oct. 18, 2009, in Minneapolis.(AP Photo/Tom Olmscheid)

A Minnesota Vikings cheerleader is shown during an NFL football game against the Baltimore Ravens Sunday, Oct. 18, 2009 in Minneapolis. (AP Photo/Jim Mone)

Baltimore Ravens wide receiver Derrick Mason catches a Joe Flacco pass in an NFL football game against the Minnesota Vikings Sunday, Oct. 18, 2009 in Minneapolis. (AP Photo/Jim Mone)

Minnesota Vikings cheerleader during a NFL football game against the Baltimore Ravens Sunday, Oct. 18, 2009, in Minneapolis.(AP Photo/Tom Olmscheid)

Minnesota Vikings running back Adrian Peterson runs agaisnt the Baltimore Ravens during a NFL football game Sunday, Oct. 18, 2009, in Minneapolis.(AP Photo/Tom Olmscheid)

Minnesota Vikings running back Chester Taylor runs during a game against the Baltimore Ravens in a NFL football game Sunday, Oct. 18, 2009, in Minneapolis.(AP Photo/Tom Olmscheid)

Baltimore Ravens head coach John Harbaugh is shown during an NFL football game against the Minnesota Vikings Sunday, Oct. 18, 2009 in Minneapolis. (AP Photo/Jim Mone)