Carson Palmer saw a spine specialist in regards to his shoulder injury, which has kept him off the field for Weeks 2 and 3.

Palmer indicated "there is no structural damage to the shoulder," there will be no need for surgery and "it's not career-threatening, it's not season-threatening or anything like that."

Palmer said he has learned how "finicky" nerves can be.

"This is just something you have to continue to work and when it's ready, it's ready, so we're going to continue with the same rehab process."

Drew Stanton will start for the Arizona Cardinals for as long as Palmer remains unavailable.

According to Fox Sports' Jack MacGruder, Palmer's nerve issue is rare -- a "one in 100,000" kind of deal, and is mostly connected to automobile accidents.