If you just looked at the regular season, Allen and the Bills have dominated Mahomes and the Chiefs, going 4-1. This years matchup in Buffalo on November 17th was a battle but, again, it was Allen and Bills pulling out a 30-21 victory -- on the legs of Allen's electric fourth quarter TD run to seal it and hand the Chiefs their first loss.

Buffalo Bills quarterback Josh Allen has spoken about his Kansas City Chiefs counterpart Patrick Mahomes ahead of their meeting in the AFC Championship game on Sunday

The near annual playoff matchups between Patrick Mahomes and Josh Allen are hardly unprecedented. The one-sided nature of the postseason rivalry between the two star quarterbacks is more unusual.

Fittingly, the Kansas City Chiefs' pursuit of a three-peat will include yet another playoff showdown with their playoff rival. On Sunday, the Chiefs will face the Bills for the right to once again represent the AFC in the Super Bowl.

Josh Allen's Bills will face Patrick Mahomes' Chiefs in the playoffs for the fourth time in five years. Here's a look back at the previous matchups (spoiler alert: Kansas City won them all).

Is Patrick Mahomes vs. Josh Allen already one of the great QB battles of NFL history? Josh Allen might need to win on Sunday to help cement its status.

Patrick Mahomes will get a chance to make history as the first NFL quarterback to ever win three Super Bowls in a row. Josh Allen will get the chance to beat the Kansas City Chiefs in the playoffs for the first time in four tries and bring his Buffalo Bills back to the Super Bowl for the first time since 1994.

NFL playoffs will see Patrick Mahomes' Kansas City Chiefs battle it out against Josh Allen's Buffalo Bills for a place in Super Bowl LIX, but Andy Reid knows that a player that proved crucial last year might be unavailable this time.

CBS Sports analyst Pete Prisco has made his Super Bowl prediction. Not only does he not have the Chiefs being in the Super Bowl and the Bills pulling off the AFC championship win, he has the Washington Commanders pulling off the upset over the Philadelphia Eagles as well.

Buffalo quarterback Josh Allen played like the league MVP this season, but until he beats Patrick Mahomes in the playoffs and gets his team the Super Bowl it doesn't really matter what his numbers are in the regular season.

They are going to keep finding miraculous ways to win, they'll keep beating the Bills and every other obstacle that stands in the way of another Super Bowl. It has a Michael Jordan and Bulls dynasty vibe.