Burnley manager Sean Dyche said VAR decisions must be made much more quickly after a bizarre incident during his side’s 1-0 FA Cup third-round victory over Barnsley on Saturday.
Dyche has thrown his support behind the Video Assistant Referee system that was used at the 2018 FIFA World Cup.
It will likely be introduced in the English Premier League next season.
But the manager was left perplexed after a penalty kick awarded to his side at Turf Moor was overturned.
Czech striker Matej Vydra was bundled over in the area in the first half, leading referee Simon Hooper to point to the spot.
As Vydra began his run-up to take the kick, however, Hooper signalled that the decision had been reversed by VAR.
“I am a big fan of the concept (VAR), but for the first penalty kick I felt the time to get to the decision was the big thing,” Dyche told reporters.
“The referee allowed the set-up for a penalty kick and I know we are learning about it. But I think the referee should grab the ball and walk outside the penalty area, so there are no implications.
“If it is a long decision, for me he has to move outside the box and stand there because Matej had got to the point of his run-up before the referee blew his whistle and said ‘no’.
“That delay was what annoyed me, not the outcome. Because once you know that is right you quickly move on,” added Dyche whose side were awarded a stoppage-time penalty kick which Chris Wood converted to put the Clarets into the fourth round.
“The timing was strange, and the outcome has to be made clearer because people weren’t sure whether it was a penalty kick or not.”
Selected FA Cup third-round ties were using the VAR system on Saturday and English Premier League clubs have agreed in principle to introduce it from the start of next season.
UEFA will fast-track the implementation of VAR for the knockout stages of its Champions League this season.