Bashaud Breeland knocked away Tom Brady's fourth-down pass to Julian Edelman in the end zone and the Kansas City Chiefs survived a series of mistakes and questionable calls by the officials to hold off the New England Patriots 23-16.
Combined with Oakland's loss to Tennessee the Chiefs clinched the AFC West title.
The loss ends the Patriots' 21-game home win streak in the regular season and playoffs, was tied for the longest in team history. It was the third-longest string in NFL history.