ALLEN PARK — Matthew Stafford has not been ruled completely out for Thursday’s game against the Green Bay Packers. But it’s probably unlikely he will play after sustaining a left shoulder injury in Sunday’s 38-37 win over Cleveland. Coach Jim Schwartz described it as an AC (Acromioclavicular joint) separation.

“Most of the tests have come back where it shouldn’t be anything I’d like to label significant. He’s sore. I would say if that continued he’d be unlikely to play,’’ Schwartz said.

“There’s a chance that goes away in the next couple days. Structurally everything  is good. I don’t think there’s any lasting damage, but he’s extremely sore as you can expect. We’ll see (about Thursday). You don’t want to close the door on anybody,’’ the coach added.

Stafford did not talk to the media on Monday.

It looks better for Stafford than for safety Ko Simpson who injured a knee in the game and didn’t return.

“He looks unlikely to play on Thursday. After more testing (we’ll know) if it’s going to be a season-ending thing or if he’ll be able to come back from it,’’ Schwartz said.

Schwartz would not be specific about hand and knee injuries to wide receiver Calvin Johnson who did not practice Monday.
— PAULA PASCHE