The Washington Commanders could be without star quarterback Jayden Daniels in Sunday's game against the Las Vegas Raiders. Per NFL Network's Ian Rapoport, Commanders head coach Dan Quinn announced that Daniels won't practice until Friday at the earliest as he continues his recovery from a knee sprain. Quinn reportedly added that Daniels had "a good rehab session" on Wednesday. Daniels injured his knee in the fourth quarter of Washington's 27-18 loss to the Green Bay Packers. If the 24-year-old isn't available for Sunday's game against the Raiders, the Commanders would turn to veteran backup Marcus Mariota.