The Kansas City Chiefs are no longer unbeaten, but they didn't seem much bothered by that, least of all quarterback Patrick Mahomes. "The undefeated thing was cool," Mahomes said after the Chiefs took their first loss of the season 30-21 against the Buffalo Bills on Sunday.

The Mahomes-Allen rivalry is now tied 4-4 (including playoffs) with just two points separating the two clubs in those meetings. Allen has the most wins by any quarterback against Mahomes, who is clearly hoping he gets another shot at the Bills this year.

Josh Allen's fourth-down touchdown run late in the fourth quarter helped the Bills hand the Chiefs their first loss of the season.