Davis (hamstring) was a limited participant in Wednesday's practice.
Davis took one carry for eight yards and accumulated 42 return yards during Sunday's loss to the Steelers, but it appears he sustained a hamstring injury in the process. The third-year wideout's participation Thursday and Friday will provide a better indication of his potential Week 4 availability. If he's unable to suit up, expect Ladd McConkey to serve as the Chargers' top return man.