The Rams listed defensive end Robert Quinn as doubtful to play against the Seahawks on Thursday night, which left him with only a slight chance of playing in the game.
That chance was sliced down to zero on Thursday afternoon when the team placed Quinn on injured reserve.
The Rams also placed running back Benny Cunningham on injured reserve. He was already ruled out for Thursday night’s game due to a neck injury.
Quinn wasn't expected to play this week, but his absence for Week 16 will impact the Rams D/ST. Cunningham served as the team's third-down running back; those duties now fall to Todd Gurley, who played a season-high 89% of the snaps last week.