The Cardinals have a third quarterback.
No, Kliff Kingsbury isn't putting a third signal-caller to the 53-man roster -- it's was a practice-squad addition Tuesday -- but for now, Kyle Sloter is the guy whom Kingsbury will try to develop going forward while rookie Kyler Murray starts and Brett Hundley serves as the Cardinals' backup.
The Cards also brought back outside linebacker Pete Robertson, who made the original 53-man roster before being released following waiver claims, to the practice squad. Four others were also signed to the practice squad: cornerback Jalen Davis, running back Justin Davis, wide receiver Johnnie Dixon and linebacker Kylie Fitts.
https://www.azcardinals.com/news/cardinals-use-practice-squad-to-add-third-qb-kyle-sloter