KANSAS CITY, Mo. (AP) — If the Chiefs keep this up, football will be fun again in Kansas City.Desperate to proclaim an official end to one of the darkest periods in team history, the Chiefs hit San Diego with two long touchdown strikes and then stopped Philip Rivers in the shadow of the goal line four times in the final minute Monday night, preserving a 21-14 victory over the four-time AFC West champions.“In rain and wind and really tough conditions, we were able to protect the football through the game,” said second-year coach Todd Haley, whose Chiefs were routed by the Chargers twice last season. “I had that as No. 1 key for our offensive group.