Referees' body PGMOL has effectively admitted that Australian official Jared Gillett got a key VAR decision wrong in the Chelsea-West Ham Premier League derby.
The Professional Game Match Officials' Board took the rare step of "acknowledging" specific controversies at matches at both Chelsea and Newcastle on Saturday, and accepted the Premier League's request for an additional investigation.
VAR decisions in all affected matches are already reviewed by a five-strong independent panel comprising representatives of the Premier League and the PGMOL as well as three former players, with their findings sent to the clubs concerned.
So it is significant that PGMOL has taken the extra step after Saturday's action, with West Ham denied a late equaliser in the 2-1 loss to Chelsea at Stamford Bridge, while the Magpies drew 0-0 with Crystal Palace after a Tyrick Mitchell own goal was ruled out at St James' Park.
PGMOL said in a statement: "PGMOL acknowledge the incidents to disallow the goals in the Chelsea v West Ham and Newcastle v Crystal Palace fixtures.
"We will fully co-operate and collaborate with the Premier League and their request to review these two particular incidents, using the outcome as part of the ongoing assessment of weekly performances and the development of our match officials going forward."
Both decisions were heavily criticised.
Hammers' boss David Moyes branded Gillett, the only Australian official in the Premier League, unfit for duty following his decision to ask referee Andy Madley to take a look at the incident on a monitor.
Maxwel Cornet's strike was chalked off by Madley only after Gillett's VAR review in the London derby, with Jarrod Bowen deemed to have fouled Edouard Mendy as he attempted to reach a ball which was spilled by the goalkeeper.
A furious Moyes said after the match: "I'm amazed that VAR sent the referee for him to see it. But I thought even if he goes to the TV there's no way he's overturning this, because this is a goal. It was a ridiculously bad decision.
"I'd question VAR today as much as the referee. But the referee should have stuck to his own guns. The sad thing is this is the level of the weak refereeing at the moment.
"Look, ultimately, I make loads of mistakes, referees can make loads of mistakes. But I would hope if the referee made a mistake, that's why it's corrected by VAR.
"But if you're saying today that the referee's mistake was corrected by VAR, I'm saying I do not see that in a million years.
"And I'm actually more embarrassed for the guy who did the VAR than I am even for the referee.
"Because that's telling me it's someone who doesn't understand football and probably shouldn't be near it, if they think that was enough to send the referee to the screen."