On a second down play, he dropped back to pass and was sacked by rookie Aaron Donald. He was looked at on the field, taken off and then carted into the locker room.
The Cardinals have not had very good luck playing the Rams. In Week 10, they lost starting QB Carson Palmer to a torn ACL.
Stanton was 12/20 for 109 yards. He began the game 9/10.
In relief of Stanton, Ryan Lindley came into the game. After a completion on third down, Chandler Catanzaro kicked a 51-yard field goal to give the Cardinals a 9-3 lead.
The initial report from the team was that Stanton's return was questionable. At the start of the fourth quarter, that was downgraded to "out."
The report from the sideline was that Stanton was not feeling so much pain, but rather sadness. That isn't good for Cardinals fans to hear.