Possibly according to Zulgad at the strib.

Vikings coach Brad Childress confirmed at his press conference that defensive end Jared Allen has an AC sprain in his right shoulder and could miss Sunday’s game against the Green Bay Packers. 

Allen had an MRI this morning but Childress said he had not met with head athletic trainer Eric Sugarman to discuss the situation before meeting with reporters.

 ”I don’t know exactly what he will be able to do this week or if he will make it to next weekend,” Childress said.

Childress said AC joint sprains range in severity on a scale from 1 to 3. He didn’t know what Allen’s grade was. He said they typically happen when players get dumped on their shoulders.

“There’s a concern [he could miss the Green Bay game],” Childress said. “That’s a painful injury to live with, particularly with the way he plays.”

Allen suffered the injury in the first half but was able to continue to play. We have locker room access later today and we’ll see if Allen is made available.

Update: Just got back from the open locker room period. Allen was in the trainers room getting treatment during the availability period and did not address the media.

If this is True, Bring in KGB!