The Los Angeles Chargers have several unanswered questions entering Thursday night’s road game against the Las Vegas Raiders.

ESPN reported that Keenan Allen (hamstring) likely will be limited if he plays at all, while fellow wide receiver Mike Williams (back) is not expected to compete.

While the Chargers (4-9) may be without two of rookie Justin Herbert’s top targets, multiple media outlets reported that running back Austin Ekeler (quad) is expected to be in the lineup against the Raiders (7-6).

Allen is second in the NFL with 99 catches. His 975 receiving yards and eight touchdowns lead the team.

Williams, who has 36 catches for 572 yards and four touchdowns, joined Allen in being limited participants in practice on Tuesday and Wednesday.

Ekeler leads the Chargers with 407 yards rushing despite playing in just seven games this season. He also has proven to be a capable outlet with 41 catches for 328 yards.

Should Allen and Williams sit out, Herbert will need to rely on tight end Hunter Henry and wideout Jalen Guyton, among others. Kalen Ballage will be looked upon to lead the backfield should Ekeler sit out.