The rivalry between the Buffalo Bills and the Kansas City Chiefs will add a chapter to its story this Sunday in the AFC championship at Arrowhead Stadium. These two teams are very familiar with one another.

There isn't a contemporary NFL quarterback rivalry quite like Josh Allen versus Patrick Mahomes. While the MVP-level signal-callers don't play in the same division, they've made a habit of meeting in high-stakes contests.

On betting lines, the Bills stand as slight underdogs against the Chiefs in Sunday’s AFC championship game in Kansas City. I see the Bills as a slight favorite due to their quarterback, Josh Allen.