The Chiefs appeared well on their way to their ninth straight victory, but the Browns are showing signs of life.
The Chiefs lead, 17-10, at the start of the fourth quarter. The Browns have the ball and momentum after executing a fake punt that backup safety Jordan Poyer turned into a first down run.
The Browns got the only touchdown of the third quarter on a 10-yard run by Isaiah Crowell that capped a nine-play, 82-yard scoring drive.
Johnny Manziel had a 34-yard run on the touchdown drive.
Alex Smith threw touchdown passes to Jeremy Maclin and Travis Kelce in the first half.