NFC North injury report

Posted by ESPN.com’s Kevin Seifert

Surveying Wednesday’s injury report around the NFC North:

Chicago Bears: Defensive end Alex Brown (ankle) didn’t practice. Neither did tight end Desmond Clark (ribs) and linebacker Pisa Tinoisamoa (knee). Clark and Tinoisamoa aren’t expected to play Sunday at Seattle. Brown’s status will be determined later this week.

Detroit Lions: Defensive end Cliff Avril (hamstring) and linebacker Ernie Sims (shoulder) didn’t practice. Sims is likely to miss several weeks and could be replaced by rookie DeAndre Levy.

Green Bay Packers: Left tackle Chad Clifton (ankle) will be sidelined at least two weeks. Daryn Colledge will replace him, forcing Jason Spitz to move to left guard and Scott Wells to return to center. We updated safety Nick Collins’ status earlier Wednesday. Running back Brandon Jackson (ankle) returned to practice on a limited basis. His status will be determined later this week.

Minnesota Vikings: Linebacker E.J. Henderson (shoulder) did not practice. Coach Brad Childress did not mention the injury when asked about Henderson earlier in the day. On the depth chart, rookie Jasper Brinkley is Henderson’s backup. But you wonder whether the Vikings would move either Ben Leber or Heath Farwell to the position if Henderson can’t play Sunday against San Francisco.