Washington Redskins running back Clinton Portis(notes) sits on the bench after taking a blow to the head during the first quarter of an NFL football game against the Atlanta Falcons, Sunday, Nov. 8, 2009, in Atlanta.

Washington Redskins receiver Santana Moss(notes), right, cannot hang on to a pass as Atlanta Falcons' Chevis Jackson(notes), left, defends in the fourth quarter of an NFL football game against the Atlanta Falcons, Sunday, Nov. 8, 2009, in Atlanta.

ATLANTA - NOVEMBER 08: Tony Gonzalez(notes) #88 of the Atlanta Falcons pulls in this reception against Chris Horton(notes) #48 of the Washington Redskins at Georgia Dome on November 8, 2009 in Atlanta, Georgia. (Photo by Kevin C. Cox/Getty Images)

ATLANTA - NOVEMBER 08: An Atlanta Falcons cheerleader performs during the game against the Washington Redskins at Georgia Dome on November 8, 2009 in Atlanta, Georgia. (Photo by Kevin C. Cox/Getty Images)

ATLANTA - NOVEMBER 08: An Atlanta Falcons cheerleader performs during the game against the Washington Redskins at Georgia Dome on November 8, 2009 in Atlanta, Georgia. (Photo by Kevin C. Cox/Getty Images)

ATLANTA - NOVEMBER 08: Todd Yoder(notes) #87 of the Washington Redskins celebrates his touchdown against the Atlanta Falcons with Fred Davis(notes) #86 at Georgia Dome on November 8, 2009 in Atlanta, Georgia. (Photo by Kevin C. Cox/Getty Images)

ATLANTA - NOVEMBER 08: An Atlanta Falcons cheerleader performs during the game against the Washington Redskins at Georgia Dome on November 8, 2009 in Atlanta, Georgia. (Photo by Kevin C. Cox/Getty Images)

ATLANTA - NOVEMBER 08: Head coach Mike Smith(notes) of the Atlanta Falcons looks on against the Washington Redskins at Georgia Dome on November 8, 2009 in Atlanta, Georgia. (Photo by Kevin C. Cox/Getty Images)

ATLANTA - NOVEMBER 08: Albert Haynesworth(notes) #92 of the Washington Redskins looks on against the Atlanta Falcons at Georgia Dome on November 8, 2009 in Atlanta, Georgia. (Photo by Kevin C. Cox/Getty Images)

ATLANTA - NOVEMBER 08: Jonathan Babineaux(notes) #95 and John Abraham(notes) #55 of the Atlanta Falcons celebrate a sack against the Washington Redskins at Georgia Dome on November 8, 2009 in Atlanta, Georgia. (Photo by Kevin C. Cox/Getty Images)

ATLANTA - NOVEMBER 08: John Abraham(notes) #55 of the Atlanta Falcons is introduced before facing the Washington Redskins at Georgia Dome on November 8, 2009 in Atlanta, Georgia. (Photo by Kevin C. Cox/Getty Images)

ATLANTA - NOVEMBER 08: Michael Turner(notes) #33 of the Atlanta Falcons celebrates his touchdown against the Washington Redskins with Marty Booker(notes) #80 at Georgia Dome on November 8, 2009 in Atlanta, Georgia. (Photo by Kevin C. Cox/Getty Images)

ATLANTA - NOVEMBER 08: Albert Haynesworth(notes) #92 of the Washington Redskins looks on against the Atlanta Falcons at Georgia Dome on November 8, 2009 in Atlanta, Georgia. (Photo by Kevin C. Cox/Getty Images)

ATLANTA - NOVEMBER 08: Quarterback Jason Campbell(notes) #17 of the Washington Redskins rushes upfield against the Atlanta Falcons at Georgia Dome on November 8, 2009 in Atlanta, Georgia. (Photo by Kevin C. Cox/Getty Images)

ATLANTA - NOVEMBER 08: Backup quarterback Todd Collins(notes) #15 of the Washington Redskins looks downfield against the Atlanta Falcons at Georgia Dome on November 8, 2009 in Atlanta, Georgia. (Photo by Kevin C. Cox/Getty Images)

A member of the Washington Redskins training staff, top, attends to injured running back Clinton Portis(notes) in the first quarter of an NFL football game against the Atlanta Falcons, Sunday, Nov. 8, 2009, in Atlanta.

ATLANTA - NOVEMBER 08: John Abraham(notes) #55 of the Atlanta Falcons tackles Ladell Betts(notes) #46 of the Washington Redskins at Georgia Dome on November 8, 2009 in Atlanta, Georgia. (Photo by Kevin C. Cox/Getty Images)

ATLANTA - NOVEMBER 08: Backup quarterback Todd Collins(notes) #15 of the Washington Redskins looks downfield against the Atlanta Falcons at Georgia Dome on November 8, 2009 in Atlanta, Georgia. (Photo by Kevin C. Cox/Getty Images)

ATLANTA - NOVEMBER 08: Head coach Jim Zorn of the Washington Redskins looks on during the game against the Atlanta Falcons at Georgia Dome on November 8, 2009 in Atlanta, Georgia. (Photo by Kevin C. Cox/Getty Images)

ATLANTA - NOVEMBER 08: Jonathan Babineaux(notes) #95 of the Atlanta Falcons sacks quarterback Jason Campbell(notes) #17 of the Washington Redskins at Georgia Dome on November 8, 2009 in Atlanta, Georgia. (Photo by Kevin C. Cox/Getty Images)

Washington Redskins quarterback Jason Campbell(notes), left, is checked by a referee after being injured after being sacked by the Atlanta Falcons in the second quarter of their NFL football game at the Georgia Dome, in Atlanta on Sunday, Nov. 8, 2009. The Falcons defeated the Redskins 31-17.

Washington Redskins quarterback Jason Campbell(notes), right, is sacked by Atlanta Falcons defensive end John Abraham(notes) (55) in the second quarter of their NFL football game at the Georgia Dome, in Atlanta on Sunday, Nov. 8, 2009. The Falcons defeated the Redskins 31-17.

ATLANTA - NOVEMBER 08: Mike Peterson(notes) #53 of the Atlanta Falcons tackles Mike Sellers(notes) #45 of the Washington Redskins at Georgia Dome on November 8, 2009 in Atlanta, Georgia. (Photo by Kevin C. Cox/Getty Images)

ATLANTA - NOVEMBER 08: Mike Peterson(notes) #53 of the Atlanta Falcons tackles Mike Sellers(notes) #45 of the Washington Redskins at Georgia Dome on November 8, 2009 in Atlanta, Georgia. (Photo by Kevin C. Cox/Getty Images)

ATLANTA - NOVEMBER 08: John Abraham(notes) #55 of the Atlanta Falcons sacks quarterback Jason Campbell(notes) #17 of the Washington Redskins at Georgia Dome on November 8, 2009 in Atlanta, Georgia. (Photo by Kevin C. Cox/Getty Images)

ATLANTA - NOVEMBER 08: John Abraham(notes) #55 of the Atlanta Falcons sacks quarterback Jason Campbell(notes) #17 of the Washington Redskins at Georgia Dome on November 8, 2009 in Atlanta, Georgia. (Photo by Kevin C. Cox/Getty Images)

ATLANTA - NOVEMBER 08: London Fletcher(notes) #59 of the Washington Redskins looks on from the bench area after another touchdown by the Atlanta Falcons at Georgia Dome on November 8, 2009 in Atlanta, Georgia. (Photo by Kevin C. Cox/Getty Images)

ATLANTA - NOVEMBER 08: Clinton Portis(notes) #26 of the Washington Redskins watches from the sidelines after suffering a concussion against the Atlanta Falcons at Georgia Dome on November 8, 2009 in Atlanta, Georgia. (Photo by Kevin C. Cox/Getty Images)

ATLANTA - NOVEMBER 08: Michael Turner(notes) #33 of the Atlanta Falcons rushes upfield against the Washington Redskins at Georgia Dome on November 8, 2009 in Atlanta, Georgia. (Photo by Kevin C. Cox/Getty Images)

ATLANTA - NOVEMBER 08: Kroy Biermann(notes) #71 of the Atlanta Falcons sacks quarterback Jason Campbell(notes) #17 of the Washington Redskins at Georgia Dome on November 8, 2009 in Atlanta, Georgia. (Photo by Kevin C. Cox/Getty Images)