Cundiff's 23-yard field goal was the only score of the third quarter.
The play just before the field goal was a scary scene for Redskins fans, as Robert Griffin III was hit hard and had to be attended to by the medical staff. Griffin III was rolling out to his right, trying to scramble toward the end zone when he was hit along the sideline by Sean Weatherspoon.
Griffin III was taken to the locker room by trainers shortly after the play and has not returned to the game. Rookie Kirk Cousins took over at quarterback for Washington.
Despite trailing, Atlanta's offense has dominated the game, picking up 285 yards compared to Washington's 217. Atlanta quarterback Matt Ryan has completed 27 passes for 247 yards, a touchdown and an interception.