Injury report: Briggs, Matthews unlikely

Getting inside a lengthy and star-studded Friday injury report.

Chicago Bears: Linebacker Lance Briggs (ankle) is officially listed as questionable but did not practice at all this week and is highly unlikely to play Sunday against the Seattle Seahawks. Instead, Brian Iwuh is the likely starter at weak-side linebacker. It will be only the fourth game Briggs has missed in his career. The Bears kept Iwuh on their 53-man roster over special-teams ace Tim Shaw because they thought Iwuh was a better defensive replacement. We should find out if that's a wise decision.

Detroit Lions: Middle linebacker DeAndre Levy (ankle/groin) is out and backup Landon Johnson (concussion) is questionable. If Johnson can't play Sunday against the New York Giants, Ashlee Palmer is the likely starter. Defensive end Turk McBride (ankle) and cornerback Nathan Vasher (nose/biceps) have also been ruled out. Receiver Calvin Johnson (shoulder) is questionable but would be limited at best if he plays. The Lions listed quarterback Matthew Stafford (shoulder) as questionable, but there is no way he plays Sunday.

Green Bay Packers: First, the good news: Quarterback Aaron Rodgers (concussion) practiced for the second consecutive day and is listed as probable for Sunday's game against the Miami Dolphins. Now for the bad news. Linebacker Clay Matthews (hamstring) is doubtful and seems highly unlikely to play. Brady Poppinga will likely still take his spot in the starting lineup. Right tackle Mark Tauscher (shoulder) is also doubtful and will miss his second consecutive game. Defensive lineman Ryan Pickett (ankle) and Mike Neal (shoulder) are both questionable, which is why the Packers re-signed veteran Mike Montgomery on Friday morning.

Minnesota Vikings: Quarterback Brett Favre is questionable because of elbow tendinitis that coach Brad Childress has downplayed all week. Friday, Childress admitted Favre struggled with his accuracy this week, but there seems to be no chance Favre will miss Sunday's game against the Dallas Cowboys. Jon Cooper is expected to start at center for John Sullivan (calf). Cornerback Chris Cook (knee) is listed as questionable but would have to make a lot of progress by Sunday morning in order to play.