The Arizona Cardinals have used four quarterbacks in winning 11 games this season.
They hung on for a 12-6 victory Thursday night against the*St. Louis Rams, almost certainly meaning they will make the playoffs, but quarterback Drew Stanton left the game*with an injury to his right knee.
His status is not yet known.
Stanton was sacked by*Rams rookie defensive tackle Aaron Donald midway through the third quarter and hit during the play by Rams defensive end Eugene Sims. After the play, Stanton couldn't put any weight on his right leg.
[Join FanDuel.com's $2M Week 15 fantasy league: $25 to enter; top 17,475 teams paid]
Cardinals head coach Bruce Arians said after the game that the team will await further tests to determine how serious Stanton's knee injury is. Stanton had a season-ending knee injury as a rookie with the Detroit Lions in 2007, missing the entire season, and also suffered a knee injury in college at Michigan State while covering a punt as a special teamer his freshman season in 2003.
"We know he has a knee injury," Arians said. "We have no idea what the extent of it is. He's had a knee injury before, so there's not any knowledge whatsoever with him.
"We'll take it very slow with him and see how it goes, once we get the MRI and more information."
Stanton replaced Cardinals starter Carson Palmer, who suffered a torn ACL against the Rams back in Week 10 — just two days after Palmer signed a contract extension with the team.
Ryan Lindley, who was signed to the roster when Palmer was placed on injured reserve, replaced Stanton — and not rookie fifth-round pick Logan Thomas, who played earlier this season in relief of Stanton.
Lindley completed 4-of-10 passes, mostly on short throws, for 30 yards. His third-down conversion to John Brown for 14 yards was key, leading to a Chris Catanzaro field goal — one of four he made in the game — to make it a two-possession game early in the fourth quarter.

Stanton, who*had started eight games over two stints in place of an injured Palmer this season, was carted off to the locker room with the injury. He had completed 12-of-20 passes for 109 yards when he left the game.
Lindley started four games as a rookie (and played in six) back in 2012 for the quarterback-challenged Cardinals that season under previous head coach Ken Whisenhunt, throwing for zero touchdowns and seven interceptions.
The Cardinals face the Seattle Seahawks in a key NFC West battle in Week 16.
If Lindley is starter next week, count on Arians expressing confidence. Comes to QBs, he loves the one he's with.
— Kent Somers (@kentsomers) December 12, 2014
- - - - - - -
Eric Edholm is a writer for Shutdown Corner on Yahoo Sports. Have a tip? Email him at [email protected] or follow him on Twitter! Follow @Eric_Edholm