Vallejo 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.

EDGE Analysis

Vallejo returned Sunday against Dallas after a six-week absence due to a knee injury. Now Vallejo is in danger of missing the Cardinals' Week 18 matchup with the Seahawks. When healthy he has provided depth at linebacker and work on special teams, roles which he'll work to return to, if he can clear protocols in time.