Chiefs rule out Kenneth Walker, NFL's No. 2 rusher, for Sunday's game in Atlanta with a groin injury

(AP) — The Chiefs have ruled Kenneth Walker out of Sunday's game in Atlanta because of a groin injury, leaving them with rookie running back Emmett Johnson, ailing youngster Jaydn Ott and journeyman Nate Carter against Bijan Robinson and the Falcons.The Chiefs made the announcement Saturday, one day after listing Walker as questionable on their injury report.