A number of Premier League managers have been critical of VAR and refereeing standards this season, including Wolves boss Gary O'Neil.
O'Neil was given a one-match touchline ban in April for his conduct near the referee's room after a game against West Ham, which saw Wolves have a late equaliser disallowed following a VAR check.
Wolves chairman Jeff Shi also questioned the role of VAR after the West Ham game and said the club would be higher in the table "if it wasn't for a number of incorrect or contentious decisions".
Nottingham Forest questioned the VAR official in a highly critical statement on social media after three penalty appeals were rejected in a 2-0 defeat at Everton last month.
An independent Key Match Incident Panel later ruled Forest should have had one penalty from their three unsuccessful appeals.
One of the most high-profile VAR mistakes to date is Luis Diaz's goal that was incorrectly disallowed for offside for Liverpool at Tottenham in October.
The Premier League said the incident highlighted "systemic weaknesses in the VAR process" and that "key learnings and immediate actions" were taken.
In February the league's chief football officer Tony Scholes said VAR had increased the number of correct decisions but that those decisions were taking too long and offered a poor in-stadium experience.
In a bid to improve transparency, referee's chief Howard Webb regularly discusses notable recent incidents involving VAR, including audio between on-field officials and the VAR team, on the TV programme Match Officials Mic'd Up live.
Last month, Sweden became the only elite league in Uefa's top 30 to reject VAR.
Vit77
577
VAR officials celebrating their La Liga title in Spain.
aglot
408
Howard Web is the referee Chief? no wonder! He won many premier league for Man United.
sudalmntuz
117
the reasons for introducing VAR is very very good but those refs takes money too, they need it and in England the var is still under Webb( why)?.I came to understand that a ref from Manchester state can be used in Marseille side for Everton to beat Liverpool so that man u, or man city could stay untop of the league same goes to other states there in England. imagine Webb called the mistake Louis diaz goal human error.when it discovered why didn't they the var call it back.i remember a ref had ended man united game but var called back he resturd the match and awerded a penalty to man united.so I am saying let us be managing it.becaus man united wil pay refs again, they became useless the introduction of VAR