Marcus Mariota exited Sunday's game against the Indianapolis Colts in London with a knee injury, and the Washington Commanders turned to rookie Athan Kaliakmanis at quarterback, according to NBC Sports.
Kaliakmanis, listed as the third-string quarterback, entered in relief of Mariota. ESPN also reported the injury and the change under center, describing Kaliakmanis as a rookie.
Fox News reported that Mariota's injury was to his knee and framed the situation as Washington losing another starting quarterback. Yahoo Sports also reported the knee injury.
Further details on the severity of Mariota's injury were not immediately available in the reporting.
The injury adds to a difficult stretch at the position for Washington, which was already without its usual starter before Mariota took over. Mariota's exit in London means the Commanders finished the game with a rookie who began the season third on the depth chart.
The game was played in London as part of the NFL's international slate, with the Colts as the opponent.
What to watch next: Washington's injury report and any update on Mariota's knee will determine whether Kaliakmanis is in line for another start.
