Palmer left Monday's 28-3 victory over the Jets with what he described as cramping from being dehydrated.
After starting 1-3, Arizona has won two games in a row and is one game behind first-place Seattle in the NFC West.
Other injury news we are tracking on Sunday:
- Ravens quarterback Joe Flacco, questionable with shoulder soreness, is active.
- Bills running back LeSean McCoy was considered a game-time decision, but is active.
- Browns wide receiver Terrelle Pryor (hamstring) is active.
- Lions running back Dwayne Washington (ankle) is inactive.
- Raiders running back Latavius Murray (turf toe) is active.
- Chiefs running back Jamaal Charles (knee) is active.
- Giants wide receiver Odell Beckham Jr.(hip) and cornerback Eli Apple (groin) are active against the Rams in London.
- Jets defensive lineman Muhammad Wilkerson is inactive with a groin injury.
- Chargers receiver Travis Benjamin is going to play today, according to Rapoport. He has been dealing with a knee injury.
- Giants return man Dwayne Harris is questionable to return after sustaining a back injury at the end of the first half.
- Redskins wide receiver DeSean Jackson (shoulder) is active.
