Match officials are generally universally hated by players, managers and fans alike.
But some referees have turned out to be a lucky omen for certain sides.
Manchester United, for instance, have won an incredible 11 out of their 12 matches played under one whistler.
Sky Sports have revealed which referee each team in the Premier League has been most successful under.
They only considered refs who have taken charge of at least four games for the side in question.
So who is your club’s lucky charm?
Click through the gallery above to find out.