ALLEN PARK -- The Detroit Lions could be thin at a number of positions for Sunday's matchup against the Chicago Bears.

Those concerns start at right tackle, where both Jason Fox and Corey Hilliard are listed as questionable with groin injuries.

Fox returned to practice this week after getting hurt in the opening quarter of the team's Week 1 win over Minnesota. Hilliard's issue cropped up some time this week. He was a full participant during Wednesday's practice, but was limited Thursday and Friday.

Fox was actually limited the first two days, but fully participated on Friday.

Outside of right tackle, the Lions will likely be without wide receiver Patrick Edward. He is still recovering from a high ankle sprain he suffered in the opening minutes of the team's Week 2 loss in Arizona.

He is listed as doubtful for the game against the Bears.

Others listed as questionable are rookie defensive end Ezekiel Ansah (abdomen) and safety Don Carey (hamstring).

Ansah was banged up in the win over Washington and was lifted for a stretch in the second half. Both he and Carey were limited in practice all three days this week.

For the Bears, cornerback Sherrick McManis is doubtful, Charles Tillman is questionable and Zack Bowman is probable

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