The Ravens placed Williams (undisclosed) on the reserve/COVID-19 list Friday.
Williams picked up a neck strain Week 2, which didn't allow him to practice Wednesday before he returned in a limited capacity Thursday. Now, with a positive test in the Ravens' facilities -- Jaylon Ferguson (illness) -- Williams has been deemed to be a close contact, at the very least. As such, Williams, Justin Houston (undisclosed) and Justin Madubuike (undisclosed) are unlikely to be available Sunday in Detroit.