The Kansas City Chiefs ' postseason aspirations suffered a massive blow after losing to the Dallas Cowboys 31-28 on Thursday. The loss dropped the reigning AFC champions to 6-6 on the season, leaving them with virtually no margin for error.

The officiating made numerous questionable calls that may have favored Jerry Jones' team. However, the lack of discipline and numerous penalties have been a hallmark of Chiefs head coach Andy Reid 's teams for years.

Chiefs' lack of discipline will cost them a playoff spot

Per OPTA Stats, the Chiefs committed five pass interference penalties in the second half alone, four of them on defense. That's the most PI penalties by any NFL team in the second half of a game in the past 35 years.

The Chiefs committed 5 pass interference penalties in the

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