The Rams were without rookie cornerback Brandon McGee because of a foot injury. He had been listed as questionable.
Palmer had been listed as questionable because of a right elbow injury he sustained in last Sunday's loss at Philadelphia. Ellington missed the Eagles game with a left knee injury.
Cardinals tight end Rob Housler (ankle, hip) also was active after being listed as questionable.
All seven of Arizona's inactive players were healthy scratches.
AP NFL website: www.pro32.ap.org
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