KANSAS CITY, Mo. (AP) — The Chiefs have spent extra time this week focusing on protecting the football. Kansas City leads the NFL with 15 turnovers, and its eight fumbles lost are double the next-worst team in the AFC. The Chiefs have a minus-13 differential, and all that wrapped together is a big reason why they’ve lost three of their first four games. Chiefs coach Romeo Crennel spent a portion of practice Wednesday focused entirely on wrapping up the ball after a particularly disastrous game last Sunday. The Chiefs turned it over six times in a 37-20 loss to San Diego. They’ll get to see whether the problem has been fixed this Sunday against Baltimore.