India, Dec. 1 -- Washington Commanders quarterback Jayden Daniels will not play tonight against the Denver Broncos because of a lingering left-elbow injury. Backup Marcus Mariota will make his sixth start of the season.

Jayden Daniels dislocated his left, non-throwing elbow during the Week 9 loss to the Seattle Seahawks on November 2. The injury occurred with 12 minutes left in the game as Washington trailed by 31 points. His arm bent awkwardly as he braced for a tackle in the fourth quarter. Tests showed ligament damage, but Daniels did not need surgery.

He missed the next two games against the Detroit Lions and Miami Dolphins, followed by the team's bye week. Daniels practiced on a limited basis leading up to Week 13, but the team rul...