The controversial introduction of video assistant refereeing (VAR) suffered another setback as confusion reigned in Manchester United's debut using the system in Saturday's fifth round FA Cup tie at Huddersfield.
It's not VAR, it's those using it that's the problem
Juan Mata thought he had put United into a 2-0 lead just before half-time following Romelu Lukaku's early opener.
However, after a lengthy delay, referee Kevin Friend disallowed the goal for offside on the recommendation of the video official, located in a studio in London nearly 200 miles away.
Yet the lines used to determine whether Mata had been standing in an offside position showed up on television footage as far from straight.
😳— David de Gea (@D_DeGea) 17 de febrero de 2018
Mourinho VAR positive
United boss Jose Mourinho had said ahead of the game that he was in favour of the introduction of technology.
"When people ask us if we like it, if we don't like it, if we agree with it or don't agree with it, I think honestly it's a question for the referees," said the Portuguese coach.
"They want to perform the best they can, they don't like to make mistakes. And sometimes they make mistakes because it's a human mistake and you cannot go over it unless you have some technological support.
"So if the referees are happy with that technological support, then yes, let's go for the VAR. I think, from my perspective, I like the feeling."