The Titans placed McNichols (undisclosed) on the reserve/COVID-19 list Wednesday, NFL reporter Aaron Wilson reports.
McNichols is competing for the No. 3 role behind Darrynton Evans (knee), making this a crucial period of the preseason to miss any time. He only has a handful of days before Saturday's exhibition finale against the Bears. Any time McNichols spends sidelined will afford Brian Hill and Mekhi Sargent increased chances to impress.