Things are going from bad to worse for the Bears' defense.
Already without Pro Bowler Akiem Hicks, the Bears may have also just lost linebacker Danny Trevathan.
Trevathan hurt his arm during the first quarter of the Bears-Lions game on Sunday. He immediately subbed himself off the field after the play, going into the blue medical tent before jogging into the locker room with team officials. Here's the play where he injured himself (warning: graphic)
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The Bears have listed him as questionable to return with an elbow injury.