Martin Atkinson's refereeing performance in Chelsea's 1-1 draw with Burnley was one of the worst ever, former referees boss Keith Hackett has told talkSPORT.

Atkinson was heavily criticised by Chelsea manager Jose Mourinho, who highlighted four key incidents that he felt influenced the result of the game.

Mourinho was particularly angered by the sending off of Nemanja Matic, who was dismissed for reacting to a strong challenge made by Ashley Barnes.