It's been two years of Chiefs dominance ever since — and Kansas City has the chance to pull off the first three-peat of the Super Bowl era. It also featured several controversies involving officials with replays, missed calls and rule interpretations that lead to that assumption that the Chiefs always get their way.

The executive director of the NFL Referees Association is the latest to release a statement to rubbish the continued conspiracy theory about bias towards the Kansas City Chiefs. Roger Goodell called it a "ridiculous theory" and three-time Super Bowl winner Julian Edelman labelled it as "baloney" and now the head of the refereeing union has also rejected the claims.