By SABC Sport
3rd October 2023
VAR Darren England and his assistant Daniel Cook did not over-rule the incorrect on-field decision of offside after Diaz had scored at the Tottenham Hotspur Stadium.
PGMOL said in a statement that "standards fell short of expectations" and it has identified three key learnings "to mitigate against the risk of a future error".
Liverpool said on Sunday they would explore their options given the "clear need for escalation and resolution" and PGMOL has provided a detailed report alongside the audio to the Premier League, which has in turn shared with Liverpool and the other 19 top-flight clubs.
PGMOL will stress the importance of accuracy ahead of efficiency to its video match officials, while a "new VAR communication protocol will be developed to enhance the clarity of communication between the referee and the VAR team in relation to on-field decisions".
PGMOL added in a statement: "As an additional step to the process, the VAR will confirm the outcome of the VAR check process with the AVAR before confirming the final decision to the on-field officials.
"We recognise standards fell short of expectations and acknowledged the error to Liverpool immediately after the conclusion of the fixture."
England and Cook have not been included among the officials for duty in the coming weekend's Premier League fixtures.
The pair had already been replaced for the remainder of their matchweek seven duties - England was due to be fourth official at Nottingham Forest v Brentford on Sunday, with Cook scheduled to be assistant referee for Monday's Fulham-Chelsea clash.
A Premier League spokesperson said: "Having reviewed all relevant footage of the disallowed Luis Diaz goal during the Tottenham Hotspur FC versus Liverpool FC match on Saturday, and PGMOL's report into the incident, it is clear that there were not only human errors but systemic weaknesses in the VAR process.
"We accept PGMOL's immediate recommendations to ensure that such failures are not repeated in the future.
"However, a wider review to seek consistently higher standards of VAR performance will be conducted by the Premier League and PGMOL, supported by other stakeholders, and where necessary further recommended actions will be brought forward and implemented.
"We have communicated fully with Liverpool FC on this matter and have shared PGMOL's findings and relevant footage of the incident with all Premier League clubs."