The Raiders will take the field for Week 4 without starting quarterback Jimmy Garoppolo after the team ruled him out on Saturday due to a concussion, the team announced Sunday.

With Garoppolo, who was evaluated for the injury after Week 3, set to miss Sunday’s game, Las Vegas will turn to either 16-year veteran Brian Hoyer or rookie QB Aidan O’Connell to start against the Chargers.

The team has not yet announced its decision at the time of publication.

This is a developing story. Check back for updates.