Commanders report: Marcus Mariota leaves early in preseason look vs. Dolphins with sprained knee

Marcus Mariota’s evening for the Washington Commanders ended far earlier than planned during Friday’s preseason opener against the Miami Dolphins, according to Yahoo Sports. Mariota, listed as the Commanders’ backup quarterback, suffered what was reported as a sprained knee early in the game, an issue that quickly shifted attention from the preseason game itself to the health of Washington’s quarterback depth.

Mariota played just four snaps in the matchup, a limited usage that underscores how tightly preseason reps are typically rationed in the opening weeks. Even so, losing a veteran option on the depth chart matters, particularly for a team that uses preseason action to evaluate protection calls, third-down packages, and the timing of routes with its supporting cast. With Mariota leaving early, the Commanders were left to rely on other quarterbacks sooner than they had planned.

The report described the injury as a sprain, but it did not provide further details about how Washington expects Mariota to respond, how the team will manage his workload next, or whether he will miss additional time. In the preseason, teams often treat minor lower-body injuries cautiously, balancing the desire for game reps against the risk of turning a short-term problem into a longer setback.

For the Commanders, the immediate challenge is roster timing. When the backup quarterback slot is under evaluation, every series can function as a referendum on who can handle specific situations, including long-yardage drives and late-game cadence. Mariota’s early exit means Washington’s staff will have to find replacement opportunities for the same evaluation areas, either in the next preseason game or through extended work during practice windows that follow the injury report.

Miami also has a stake in how Washington’s quarterback rotation settles. The Dolphins, like many teams in the league’s early exhibition period, are using preseason to test defensive matchups and adjust coverage calls against different quarterback styles. When one quarterback departs quickly, it compresses those looks and can limit how thoroughly both teams assess their game-day tendencies against each other’s personnel.

What happens next will likely depend on Washington’s medical updates and the team’s decision-making around his availability. If the Commanders confirm the sprain and provide a clearer timetable, that will help determine whether Mariota remains part of the immediate plan or is held out while the knee is managed. Until then, Washington’s quarterback group is set up for contingency, with the coaching staff needing to ensure the next quarterback reps come with enough continuity to support accurate evaluation.