NFL Commissioner Roger Goodell threw cold water on the theory that officials favored the Kansas City Chiefs over the Buffalo Bills.

The Kansas City Chiefs are preparing for another Super Bowl appearance, but one of the biggest storylines heading into the game isn’t just their dominance — it’s the controversy surrounding how they got there.

Patrick Mahomes and the Kansas City Chiefs are once again one of two teams left standing, with their win over the Buffalo Bills in the AFC championship game cementing their third consecutive Super Bowl appearance. There's more controversy surrounding this particular trip to the big game, though.