EDEN PRAIRIE, Minn.
Vikings quarterback Brett Favre lined up at outside linebacker with the scout-team defense Friday, but he was listed as doubtful for Sunday's game at Philadelphia as he continues to recover from a concussion that prevented him from working out at quarterback with the team all week.
Favre failed his baseline neurological examination for the third straight day.
Rookie Joe Webb still is on track to start against the Eagles.
Favre uffered the concussion during Monday night's loss to the Chicago Bears,