Manchester United pair Ole Gunnar Solskjaer and Luke Shaw were left outraged after officials failed to give the Red Devils a penalty at Chelsea after the ball struck the hand of Callum Hudson-Odoi.
Former referees' chief Keith Hackett called on Lee Mason to retire following his 'appalling piece of refereeing' at the Hawthorns on Saturday.
As a result, officials have been thrust into the spotlight again, with many asking questions over the standard of refereeing in the UK and the impact of VAR.
Therefore, I have answered some of the most pressing questions circulating at the the moment.