Refereeing body PGMOL have admitted that the decision to disallow Luis Diaz's goal in Liverpool's 2-1 defeat to Tottenham was "a significant human error". 

With the score goalless and the Reds a man down, VAR did not intervene to overturn the on-field offside decision.

A statement released just prior to the final whistle, read: "PGMOL acknowledge a significant human error occurred during the first half of Tottenham Hotspur v Liverpool. 

"The goal by Luiz Diaz was disallowed for offside by the on-field team of match officials. 

"This was a clear and obvious factual error and should have resulted in the goal being awarded through VAR intervention, however, the VAR failed to intervene. 

"PGMOL will conduct a full review into the circumstances which led to the error.

"PGMOL will immediately be contacting Liverpool at the conclusion of the fixture to acknowledge the error."

The Reds — who went down to nine men after Curtis Jones and Diogo Jota saw red — were beaten when Joel Matip turned Pedro Porro's cross into his own net.

Following the match, Liverpool manager Jurgen Klopp remained reserved in his reaction to the statement. 

He said: "I don't think we should talk too much about that because it doesn't help at all. 

"Wolves got a similar statement, or apology. They didn't get a point out of United and we won't get a point today so it doesn't help. 

"I am pretty sure no one is making mistakes on purpose but it still happened and at this moment I don't know why. 

"[We] scored a fantastic goal — would it have changed the game? I don't know. But probably, because goals help."