The quarterback carousel continues to turn for the Arizona Cardinals. The Cardinals, responding to Drew Stanton’s knee injury, have signed quarterback Matt Barkley, the team announced on Monday.

In corresponding moves, the Cardinals promoted safety Harlan Miller from the practice squad and placed safety Tyvon Branch, offensive tackle D.J. Humphries and tight end Ifeanyi Momah on injured reserve.

Stanton had suffered a sprained knee during Thursday’s loss to the Seattle Seahawks which forced Arizona to explore the free agent market.

If Stanton misses time, the Cardinals are expected to give the starting gig to backup quarterback Blaine Gabbert, who threw for 925 yards, five touchdowns, and six interceptions for the San Francisco 49ers last season.