The Kansas City Chiefs have run out of room for error.

If they’re going to extend the dynasty and reach the AFC championship game for a ninth straight season to have a shot at winning a fourth Super Bowl title with coach Andy Reid and quarterback Patrick Mahomes, they might need to win their last five games — and get help.

A 31-28 loss at Dallas on Thursday dropped the Chiefs (6-6) to .500. They’ve already lost to the three 7-4 teams currently sitting in the AFC wild-card spots — Chargers, Jaguars, Bills — and they also trail the Texans (6-5) and Steelers (6-5).

Kansas City’s final five games are home vs. Houston and Los Angeles (the Chargers beat the Chiefs in Week 1 in Brazil), at Tennessee, home vs. Denver and at Las Vegas. The three toughest games are at Arrowhead Stadium, where the

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