The Lions will not have two key players for Thursday’s game against the Bears, but two others are expected to play.

Offensive tackle Taylor Decker (knee) and cornerback Carlton Davis (knee/thumb) are out for the game. But running back David Montgomery (shoulder) and receiver Amon-Ra St. Brown (knee) are both questionable.

Decker and Davis were listed as non-participants in all three short-week injury reports.

Montgomery and St. Brown were both listed as full participants on Wednesday. They were limited on Tuesdays and DNPs on Mondays.

Montgomery and head coach Dan Campbell both said Montgomery wanted to get back into the game during last week’s win over the Colts, but the club held him back as a precaution.

Cornerback Terrion Arnold (groin) and defensive lineman DJ Reader (illness) are both out of injury and ready to play. Arnold and Reader were both full participants in Tuesday and Wednesday’s reports.

Additionally, the Lions announced the previously reported move to place receiver/returner Kalif Raymond (foot) on injured reserve. He will be out for at least four weeks.

Receiver Maurice Alexander and linebacker David Long have been named to the team’s 53-man practice squad roster.

Offensive lineman Jamarco Jones has been elevated from the practice squad to the game-day roster.