MINNEAPOLIS - Minnesota Vikings quarterback Brett Favre is listed as doubtful on the team's injury report in preparation for Sunday's game against Philadelphia.
Favre suffered a concussion on Monday against the Bears and was forced out of the game, though head coach Leslie Frazier would not rule him out of this week's contest.
Favre unexpectedly started against the Bears after he was supposed to miss his second consecutive game at the tail end of a 297-game starts streak. He was driven to the ground by Chicago's Corey Wootton during the second quarter, forcing Joe Webb to complete the game in a 40-14 loss.
He has not practiced this week.
Meanwhile, running back Adrian Peterson is listed as questionable with a knee injury after missing Monday's contest. He's practiced on a limited basis each of the last two days.
Safety Tyrell Johnson has been ruled out with a knee injury.