Arizona Cardinals injuries: Calais Campbell out 1-3 weeks, Matt Shaughnessy to IR and many other players hurt

The Arizona Cardinals suffered their first loss of the 2014 season. However, they also suffered a number of injuries in the game.

Head coach Bruce Arians addressed the media on Monday and gave the rundown. It was long.

Cornerback and special teams ace Justin Bethel suffered an AC sprain (a shoulder injury), "but should be able to go this week."

Patrick Peterson suffered an ankle sprain, but it is "a low ankle." "He should be fine," Arians said.

The news was actually better than expected for defensive end Calais Campbell. He suffered a medial collateral ligament strain -- not a sprain as originally thought. He could be out "one to three weeks, possibly." But there was no structural damage.

Quarterback Drew Stanton did suffer a concussion, so "he's got to go through the protocol." "As soon as he is symptom-free, then we'll be able to take the neurological test and proceed."

Arians said that quarterback Carson Palmer "was feeling much better today," after having thrown 20 or so passes in Denver and getting some treatment on his shoulder and nerve. "There were no residual effects from throwing," said Arians.

"He and Drew are basically possible for this ballgame," said Arians. But Arians did say there is a real possibility they could be without both players on Sunday.

Punter Dave Zastudil, who punted on Sunday for the first time in a game this season, reinjured the groin that had kept him on the bench before Sunday.

The player that will miss the most time is linebacker Matt Shaughnessy, who will go on injured reserve, designated for return. He had a knee injury, something with the cartilage. Arians noted Shaughnessy "should be ready to return in six weeks and come back for the last four (games)."

According to NFL rules, if a player is placed on injured reserve (designated to return), he must sit out at least six weeks of practice. He must be out eight games. So Shaughnessy will have to miss at least eight games, which would make him available to play the final four games, with the earliest being at home against the Kansas City Chiefs.

Rookie Troy Niklas suffered a high ankle sprain. Arians said they will "see how that goes day to day."

Replacing Shaugnessy in the starting lineup will be linebacker Alex Okafor. Thomas Keiser will be in the mix in terms of playing time.

If Zastudil has to miss another game, the team will promote punter Drew Butler from the practice squad. Butler punted the first three games of the season.

Arians said there would be a rotation of guys to fill in for Calais Campbell. He is glad for the depth and flexibility they have.

Depending on what happens with the quarterbacks, Logan Thomas will get the start and the team might need to sign a quarterback. Arians said any guy that comes in would back up Thomas and would have to already be familiar with the offense.

I'll have more from Arians' presser and from the locker room as well later today.