Froholdt (concussion) did not participate at practice Thursday, Zach Gershman of the Cardinals' official site reports.
Froholdt appeared on Arizona's injury report with a concussion Wednesday, and now his status for Week 10 is in serious doubt. If he can't return to practice Friday and advance through the NFL's five-step concussion protocol ahead of Sunday's game versus the Rams, he'll have to miss his first regular-season contest since he joined the Cardinals back in 2023.