Carson Palmer suffered a torn ACL in his left knee in the Arizona Cardinals' Week 10 victory.

"We don't know anything about Carson's injury or the length or whatever it is yet," Arians said. "It is obviously a knee, but he will be evaluated and get an MRI and everything, and we'll know something more hopefully by Tuesday."

Steve Keim said during his weekly Monday morning appearance on Arizona Sports 98.7 FM that Palmer will "go through a number of tests" Monday morning.

"We should have some more information at a later time today," Keim said.

Palmer was injured on a sack by Rams safety Mark Barron with about 11:21 left in the fourth quarter Sunday, just two days after he signed a three-year contract extension worth a reported $50 million, including $20.5 million guaranteed.