Washington Commanders backup quarterback Marcus Mariota is prepared to start Sunday against the Las Vegas Raiders if starting quarterback Jayden Daniels, who suffered a sprained left knee, can't play. Coach Dan Quinn described Daniels as "day-to-day" and emphasized a cautious approach to his return. Mariota has experience filling in for Daniels, having performed well in similar situations last season. He's confident in his readiness and maintains a consistent routine, regardless of his role. A further update on Daniels' status is expected Friday.

Prepared by Emily Rhodes and reviewed by editorial team.