The AFC had a major shake-up after the thrilling Week 11 slate, even if not much changed in the standings. The Kansas City Chiefs are no longer the lone unbeaten, as the Buffalo Bills own the head-to-head tiebreaker over them for home-field advantage in the playoffs.

The Chiefs and Bills renew their annual rivalry when they face off in Buffalo on Sunday afternoon. Kansas City remains the only undefeated team at 9-0, and this will likely be the last time during the regular season that the Chiefs will find themselves in an underdog role.