Cardinals coach Bruce Arians has gone back and forth this week, but he just made it official.
Quarterback Carson Palmer won’t play this week because of a concussion, and isn’t making the trip to San Francisco, per Kent Somers of the Arizona Republic.
Palmer suffered a concussion in last week’s loss to the Rams, and has yet to be cleared by an independent neurologist.
That leaves Drew Stanton at the helm Thursday night against the 49ers, in a matchup of 1-3. They promoted Zac Dysert from the practice squad so they’d have an active backup to Stanton.