The Washington Commanders have placed backup quarterback Marcus Mariota on injured reserve due to a pectoral injury, sidelining him for at least the first four games of the season. This decision follows Mariota's injury during practice, which has prompted the team to elevate Sam Hartman from the practice squad as the third-string quarterback behind starter Jayden Daniels and backup Jeff Driskel. Mariota, who signed a one-year, $6 million contract earlier this year, was initially competing for the starting position but was unlikely to win against the rookie. Coach Dan Quinn confirmed that Mariota missed practice this week due to his injury. Additionally, defensive tackle Sheldon Day and linebacker Nick Bellore have also been elevated to the active roster ahead of the season opener against Tampa Bay. The Commanders are now preparing to move forward without Mariota as they begin their campaign.