NFC North Friday injury report

Let's get inside the Friday injury report in the NFC North:

Chicago Bears: We already knew that the Bears wouldn't have guard Chris Spencer (knee) or receivers Devin Hester and Alshon Jeffery (knee) for Sunday's game against the Seattle Seahawks. The rest of the Bears' roster, however, should be available. That includes tailback Matt Forte (ankle), linebacker Lance Briggs (ankle) and cornerback Charles Tillman (foot).

Detroit Lions: Left tackle Jeff Backus was a limited participant in practice Friday and is listed as questionable for Sunday's game against the Indianapolis Colts. Rookie Riley Reiff would start in Backus' place if necessary. Cornerback Jacob Lacey (foot/knee) and defensive tackle Corey Williams (knee) did not practice and are listed as questionable.

Green Bay Packers: Linebacker Clay Matthews (hamstring) is one of six players who have been declared out of Sunday's game against the Minnesota Vikings. He didn't practice all week and his designation is not a surprise. The "out" list also includes cornerback Charles Woodson (collarbone), defensive end C.J. Wilson (knee), running back Johnny White (concussion), cornerback Sam Shields (shin) and tight end Andrew Quarless (knee). Linebacker Terrell Manning (shoulder) is doubtful. Meanwhile, receiver Donald Driver did not practice all week because of a thumb injury. He is listed as questionable. Since he became a full-time player in 2000, Driver has missed only six games.

Minnesota Vikings: Receiver Percy Harvin (ankle) is doubtful for Sunday's game. He didn't practice Friday and almost certainly will miss his third consecutive game. All other players will be available. Coach Leslie Frazier said Harvin is having difficulty cutting and changing direction, which makes you wonder whether he'll be available for the Dec. 9 game against the Bears.