Mike Riley, head of the Professional Game Match Officials Limited, has come under criticism from Cardiff City manager Neil Warnock.

BBC Sport write that Warnock labelled the ex-referee robot-like as he ‘struggles to understand the human element of the game’.

The Bluebirds boss is of course still unhappy with the way Craig Pawson and his team officiated their 2-1 loss to Chelsea on Sunday.

The officials failed to spot that Cesar Azpilicueta was standing in an offside position when he equalised for Maurizio Sarri’s team.

The 70-year-old was angered further when Antonio Rudiger was shown a yellow card for bringing down Kenneth Zohore, with the experienced manager of the belief that it warranted a red card.

Warnock has not spoken to Riley about the incidents but expects to be contacted by the Football Association at some point.

On his comments made after Sunday’s match and Riley, he said:

I’m sure they’ll ask for my observations and I’ll send them. I’d imagine people in the FA feel sorry for me if I’m honest. I don’t think Mike Riley and I are close Christmas card list-wise. I’ve known Mike Riley for many years and it stills amazes. When I see people like Paul Durkin, Graham Poll and Mark Clattenburg – who were top referees and know the game as well as the laws – I think it’s criminal they’re not involved. Mark Halsey, he knew how to handle players and he could give major advice to some of these referees. I always thought Mike Riley was a manufactured referee from day one when he refereed a game at Hartlepool against me. I don’t think he’s changed since then. He’s been coach manufactured, almost like a robot. He knows everything about the rules but I feel these people struggle to understand the game and the human element.

Will Warnock be charged by the FA?