Quarterback Marcus Mariota left with a knee injury in the first quarter, forcing the Washington Commanders to turn to third-string rookie Athan Kaliakmanis in a 30-13 loss to the Indianapolis Colts on Sunday at Tottenham Hotspur Stadium in London. Washington was flagged 10 times for 84 yards to the Colts’ one penalty for 5 yards, and it turned the ball over on downs on a fourth-and-1 in its own territory while leading 6-0.