The Detroit Lions have released their final injury report for Sunday's game against the San Francisco 49ers. Unfortunately, it includes a few pieces of bad news, mainly for the Lions' secondary. Cornerback Bill Bentley has been ruled out with a concussion, and fellow cornerback Chris Houston is doubtful despite taking part in practice each of the last three days (albeit on a limited basis). Also, safety Louis Delmas is considered doubtful.

Here's a look at the full Lions injury report:

WR Calvin Johnson (Foot) - Probable

DE Lawrence Jackson (Calf) - Questionable

DT Corey Williams (Knee) - Questionable

LB Travis Lewis (Quad) - Doubtful

CB Chris Houston (Ankle) - Doubtful

CB Bill Bentley (Concussion) - Out

S Louis Delmas (Knee) - Doubtful

It's no surprise that Bentley is out and Delmas is doubtful, but I am surprised that Houston is considered doubtful. I was expecting him to play, but it doesn't appear that he will be able to give it a go on Sunday. This means the Lions are down to Jacob Lacey, Drayton Florence, Kevin Barnes and Jonte Green at cornerback. That is very, very scary.

Here's a look at the 49ers' injury report:

RB Brandon Jacobs (Knee) - Questionable

WR Ted Ginn (Ankle) - Questionable

LB NaVorro Bowman (Shoulder) - Probable

P Andy Lee (Hand) - Probable

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