There are only four teams left standing in the NFL and just like we all predicted before the season, the Washington Commanders are one of them. Just kidding, no one predicted that. Not even Commanders fans.

The Buffalo Bills (13-4) go on the road in a playoff matchup with the Kansas City Chiefs (15-2) at GEHA Field at Arrowhead Stadium in the AFC Championship game on Jan. 26, kicking off at 6:30 p.m.

We break down the biggest strengths and question marks in the Bills-Chiefs matchup, plus the X-factors that could make all the difference.