Friday injury report / Update

Posted by ESPN.com’s Kevin Seifert

Making sense of the Friday injury report:

Chicago Bears: Defensive end Alex Brown (ankle) returned to practice Friday and is listed as questionable on the injury report. But it’s fully expected he’ll play Sunday at Seattle. On the other hand, the Bears are unlikely to face Seahawks quarterback Matt Hasselbeck. He’s doubtful because of a rib injury, meaning Seneca Wallace is likely to start for the Seahawks.

Detroit Lions: Defensive end Cliff Avril (hamstring), cornerback Eric King (shoulder) and linebacker Ernie Sims (shoulder) are not expected to play Sunday against Washington. Cornerback Phillip Buchanon (neck) has been limited in practice and is questionable but seems more likely than not to play. Defensive tackle Grady Jackson (knee) is probable and will play.

Green Bay Packers: Rookie defensive lineman B.J. Raji tweaked his ankle Thursday in practice and is questionable for Sunday’s game at St. Louis. The minor setback doesn’t bode well for him making an impact in Sunday’s game. Tailback Brandon Jackson (ankle) also suffered a setback Thursday and won’t play Sunday. Fullback Korey Hall (shoulder/concussion) is questionable and would be replaced on the active roster by rookie Quinn Johnson if he can’t play. As expected, safety Nick Collins (shoulder) is probable and will start opposite Derrick Martin in St. Louis.

Minnesota Vikings: Middle linebacker E.J. Henderson (shoulder) participated in a limited portion of practice Friday but is questionable for Sunday’s game against San Francisco. This appears to be a true 50-50 scenario. If Henderson can’t play, rookie Jasper Brinkley is the likeliest candidate to replace him. Other possibilities are outside linebacker Ben Leber and reserve/special teams ace Heath Farwell. Receiver Percy Harvin missed practice for the second consecutive day because of an illness and is questionable. He was feeling well enough Friday to attend meetings, however. Update: Harvin is suffering from migraines, as reported on ESPN's NFL Live.