Richard Keys has insisted that the FA's failure to punish Bruno Fernandes for shoving a linesman has 'come back to bite them' after Constantine Hatzidakis lashed out at Andy Robertson.
The Manchester United midfielder avoided punishment for pushing the linesman during their 7-0 loss to Liverpool last month.
Now the FA have been left with a decision to make after Hatzidakis elbowed Andy Robertson during Sunday's thrilling 2-2 draw with Liverpool.
Keys has compared the two incidents in his latest blog, and feels the FA's failure to punish Fernandes has come back to bit them.
He wrote: 'We’ll maybe never know exactly what happened at half-time when Robertson and assistant Hatzidakis clashed. The pictures aren’t good for the lino, but I hope he escapes censure - just as Bruno Fernandes did on that very same ground.
'I said then that Fernandes should’ve been charged. The FA rightly threw the book at Mitrovic, but a week or two before that incident at Old Trafford they let Fernandes off after he laid hands on an assistant. See. These things come back to bite you.'