Kerr was placed on the reserve/COVID-19 list Tuesday, Darren Urban of the Cardinals' official site reports. This was the result of testing positive for the virus, according to Ian Rapoport of NFL Network.
Kerr has recently missed time due to a rib injury, but he may be forced to miss even more time after entering COVID protocols. The 31-year old has provided depth on the defensive line for the Cardinals when healthy, and he'll work to clear protocols so he can do so again Sunday, against the Seahawks.