Baltimore Ravens wide receiver Marlon Brown (14) scores a touchdown in the second half of an NFL football game against the Minnesota Vikings, Sunday, Dec. 8, 2013, in Baltimore. Baltimore won 29-26. (AP Photo/Nick Wass)

Baltimore Ravens wide receiver Marlon Brown, center, celebrates his touchdown with teammates Jacoby Jones, second from right, and Torrey Smith in front of Minnesota Vikings middle linebacker Audie Cole in the second half of an NFL football game, Sunday, Dec. 8, 2013, in Baltimore. Baltimore won 29-26. (AP Photo/Nick Wass)

Minnesota Vikings wide receiver Cordarrelle Patterson, left, runs for a touchdown in front of Baltimore Ravens defensive end Chris Canty in the second half of an NFL football game, Sunday, Dec. 8, 2013, in Baltimore. (AP Photo/Nick Wass)

Minnesota Vikings tight end John Carlson (89) tries to break free from Baltimore Ravens strong safety James Ihedigbo as he rushes the ball in the second half of an NFL football game, Sunday, Dec. 8, 2013, in Baltimore. (AP Photo/Gail Burton)

Minnesota Vikings running back Toby Gerhart, bottom right, falls into the end zone for a touchdown in front of Baltimore Ravens cornerbacks Corey Graham, bottom left, and Jimmy Smith in the second half of an NFL football game, Sunday, Dec. 8, 2013, in Baltimore. (AP Photo/Nick Wass)

Baltimore Ravens wide receiver Jacoby Jones (12) returns a kickoff for a touchdown in the second half of an NFL football game against the Minnesota Vikings, Sunday, Dec. 8, 2013, in Baltimore. (AP Photo/Gail Burton)

Baltimore Ravens running back Ray Rice, front left, rushes around Minnesota Vikings free safety Andrew Sendejo (34) in the second half of an NFL football game on Sunday, Dec. 8, 2013, in Baltimore. (AP Photo/Gail Burton)

Minnesota Vikings wide receiver Jerome Simpson, center, celebrates his touchdown with teammates Phil Loadholt, left, and Greg Jennings in the second half of an NFL football game against the Baltimore Ravens, Sunday, Dec. 8, 2013, in Baltimore. (AP Photo/Gail Burton)

Baltimore Ravens quarterback Joe Flacco is tackled by Minnesota Vikings defensive end Jared Allen as he rushes the ball in the first half of an NFL football game, Sunday, Dec. 8, 2013, in Baltimore. (AP Photo/Gail Burton)

Baltimore Ravens quarterback Joe Flacco, center, is tackled by Minnesota Vikings strong safety Jamarca Sanford, right, as cornerback Xavier Rhodes, left, looks on in the first half of an NFL football game, Sunday, Dec. 8, 2013, in Baltimore. (AP Photo/Gail Burton)

Baltimore Ravens tight end Ed Dickson, left, scores a touchdown in front of Minnesota Vikings cornerback Chris Cook in the first half of an NFL football game, Sunday, Dec. 8, 2013, in Baltimore. (AP Photo/Gail Burton)

Minnesota Vikings running back Adrian Peterson (28) is tackled by Baltimore Ravens inside linebackers Jameel McClain, left, and Daryl Smith as he rushes the ball in the first half of an NFL football game, Sunday, Dec. 8, 2013, in Baltimore. (AP Photo/Nick Wass)

Minnesota Vikings wide receiver Cordarrelle Patterson (84) tries to stay in bounds as he rushes the ball past Baltimore Ravens linebacker Pernell McPhee in the first half of an NFL football game on Sunday, Dec. 8, 2013, in Baltimore. (AP Photo/Gail Burton)

Baltimore Ravens head coach John Harbaugh watches action as snow falls in the first half of an NFL football game against the Minnesota Vikings, Sunday, Dec. 8, 2013, in Baltimore. (AP Photo/Nick Wass)

Snow falls as Minnesota Vikings quarterback Matt Cassel, center, prepares to hand the ball off to running back Adrian Peterson (28) in the first half of an NFL football game against the Baltimore Ravens, Sunday, Dec. 8, 2013, in Baltimore. (AP Photo/Gail Burton)

Baltimore Ravens quarterback Joe Flacco (5) rushes the ball as he is chased by Minnesota Vikings outside linebacker Chad Greenway (52) and defensive end Brian Robison, left, in the first half of an NFL football game, Sunday, Dec. 8, 2013, in Baltimore. (AP Photo/Gail Burton)

Snow falls on Baltimore Ravens offensive tackle Ricky Wagner's jersey in the first half of an NFL football game against the Minnesota Vikings, Sunday, Dec. 8, 2013, in Baltimore. (AP Photo/Patrick Semansky)

Baltimore Ravens quarterback Joe Flacco, left, hands the ball off to running back Ray Rice as snow falls in the first half of an NFL football game against the Minnesota Vikings, Sunday, Dec. 8, 2013, in Baltimore. (AP Photo/Nick Wass)

A Minnesota Vikings fan tries to catch snowflakes on his tongue as he watches players warm up before an NFL football game between the Vikings and the Baltimore Ravens, Sunday, Dec. 8, 2013, in Baltimore. A powerful storm system that spread snow, sleet and freezing rain widely across the nation's midsection rumbled toward the densely populated Eastern seaboard on Sunday, promising more of the same. (AP Photo/Patrick Semansky)

Baltimore Ravens quarterback Joe Flacco (5) throws to a receiver as snow falls in the first half of an NFL football game against the Minnesota Vikings, Sunday, Dec. 8, 2013, in Baltimore. (AP Photo/Gail Burton)

Members of the Minnesota Vikings, left, line up for a play against the Baltimore Ravens as snow falls in the first half of an NFL football game, Sunday, Dec. 8, 2013, in Baltimore. (AP Photo/Nick Wass)

Members of the Baltimore Ravens and Minnesota Vikings huddle between plays on the field as snow falls in the first half of an NFL football game, Sunday, Dec. 8, 2013, in Baltimore. (AP Photo/Patrick Semansky)

Baltimore Ravens tight end Ed Dickson, left, scores a touchdown in front of Minnesota Vikings cornerback Chris Cook in the first half of an NFL football game, Sunday, Dec. 8, 2013, in Baltimore. (AP Photo/Gail Burton)

Baltimore Ravens quarterback Joe Flacco (5) throws to a receiver as snow falls in the first half of an NFL football game against the Minnesota Vikings, Sunday, Dec. 8, 2013, in Baltimore. (AP Photo/Gail Burton)

Baltimore Ravens quarterback Joe Flacco, center, is tackled by Minnesota Vikings strong safety Jamarca Sanford, right, as cornerback Xavier Rhodes, left, looks on in the first half of an NFL football game, Sunday, Dec. 8, 2013, in Baltimore. (AP Photo/Gail Burton)

Snow falls as Minnesota Vikings quarterback Matt Cassel (16) throws to a receiver in the first half of an NFL football game against the Baltimore Ravens, Sunday, Dec. 8, 2013, in Baltimore. (AP Photo/Gail Burton)