The Chargers placed Williams on the reserve/COVID-19 list Wednesday, Field Yates of ESPN reports.
Fellow starting wideout Keenan Allen was placed on same list Monday, making the statuses of both players worth monitoring closely as Sunday's game against the Giants approaches. Beyond Allen and Williams, the Chargers have Jalen Guyton, Josh Palmer and Andre Roberts on hand at receiver, while running back Austin Ekeler and tight ends Jared Cook and Donald Parham could also take on pronounced roles in the passing game if the team's top two wideouts are sidelined Week 14.