Williams (ankle) was diagnosed Monday with a right high-ankle sprain and is expected to "miss some time," Adam Schefter of ESPN reports.
Williams caught seven passes for 86 yards and a score before leaving Sunday's loss to the Seahawks late in the fourth quarter. Keenan Allen returned to action Sunday following a five-game absence due to a hamstring issue but was limited to just two catches for 11 yards across 23 offensive snaps. It's unclear how much time Williams will miss or if a stint on injured reserve is a possibility, but Allen will have to step up as the go-to target in Williams' absence. The Chargers are on bye Week 8 before returning to action Sunday, Nov. 6 in Atlanta.