Arizona Cardinals quarterback Drew Stanton suffered a sprained right knee in Thursday night’s win over the St. Louis Rams, according to reports Friday.

Stanton underwent an MRI on his injured knee Friday. He is considered week to week.

Fox Sports reported Stanton suffered a sprained ACL and a Grade 2 MCL sprain.

Stanton was carted off the field in the third quarter of the Cardinals’ 12-6 victory. He was injured on a sack by Rams defensive lineman Aaron Donald.

Third-year quarterback Ryan Lindley took over at quarterback and finished 4-of-10 passing for 30 yards in his first game action since 2012. Stanton was 12-for-20 for 109 yards before leaving the game.

Lindley re-signed with the Cardinals on Nov. 11 after Carson Palmer was lost for the season with a torn ACL in Week 10, also suffered against the Rams.

Head coach Bruce Arians said after the game that experience was the reason he went with Lindley over rookie Logan Thomas. Lindley spent the last two seasons with Arizona, starting four games in 2012.

“(He’s) been in this stadium and played against these guys,” Arians said of Lindley. “And it was not a time to put Logan out there. He’s going to be a good player someday, but he’s not ready for this yet, and Ryan was more than ready, and really liked his poise and confidence.”