Green suffered the concussion during a loss in Pittsburgh on Sunday night that relegated the Bengals (10-5-1) to a wild-card berth. The Pro Bowl receiver didn't pass concussion tests and was ruled out on Saturday.
Green missed three games - including Cincinnati's 27-0 loss at Indianapolis in October - and parts of two others with an injured right big toe. Mohamed Sanu, who has only three catches in the past three games, becomes the top receiver in Green's absence.
Tight end Jermaine Gresham was listed as questionable with a sore back.
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