The Detroit Lions' defense could be without several key contributors on Sunday when the Seattle Seahawks come to town. Cornerback Jacob Lacey and safety Amari Spievey have already been ruled out for Sunday's game because of concussions, and linebacker DeAndre Levy is considered doubtful because of a hamstring injury. In addition, defensive end Cliff Avril, cornerback Bill Bentley and safety Louis Delmas are all questionable with various injuries.

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

WR Calvin Johnson (Knee) - Probable
WR Titus Young (Knee) - Questionable
TE Brandon Pettigrew (Knee) - Probable
DE Cliff Avril (Back) - Questionable
DT Corey Williams (Knee) - Probable
LB DeAndre Levy (Hamstring) - Doubtful
LB Stephen Tulloch (Knee) - Probable
CB Jacob Lacey (Concussion) - Out
CB Bill Bentley (Shoulder) - Questionable
S Amari Spievey (Concussion) - Out
S Louis Delmas (Knee) - Questionable

And here's a look at the Seahawks' final injury report:

RB Marshawn Lynch (Back) - Probable
WR Doug Baldwin (Ankle) - Out
OG John Moffitt (Knee) - Questionable
DE Jason Jones (Ankle) - Doubtful
CB Byron Maxwell (Hamstring) - Out

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