Raiders to Start Rookie QB Aidan O'Connell Against Chargers With Jimmy Garoppolo Out Due to Concussion

Jimmy Garoppolo suffered a concussion in Week 3 and has been ruled out for the Raiders' Week 4 game against the Chargers.
Rookie quarterback Aidan O'Connell has been named the starter after impressing in the preseason.
Veteran quarterback Brian Hoyer will serve as O'Connell's backup.
The Chargers' defense has struggled this season, giving up the most passing yards per game in the NFL.
Garoppolo's absence deals a blow to the Raiders, who signed him to a lucrative contract in the offseason.