Spain were awarded an equaliser to snatch a 2-2 draw against Morocco when an Iago Aspas goal was given after VAR helped referee Irmatov to reverse a mistaken offside call.
The Video Assistant Referee system had been subject to much debate before the tournament, but the world got its first taste of the system on Saturday, not once but twice.
Antoine Griezmann scored from the first VAR-assisted penalty awarded in the history of the World Cup as title hopefuls France battled to a 2-1 win over gutsy Australia in Kazan on Saturday.
The Video Assistant Referee system was used for the first time in World Cup history on Saturday, when France were awarded a penalty against Australia in Kazan.
The inclusion of Video Assistant Referee is one of the biggest on-field technological advancements football has seen ever.
Promoting VAR has been one of FIFA’s top priorities in the run-up to the World Cup.
FIFA director of referees Massimo Busacca admits the VAR has been rushed in for the World Cup, but insists officials are ready.
VAR can be used in four scenarios, after a goal has been scored, for penalty decisions, red card decisions or for a case of mistaken identity of a player who has been booked or sent off.
Lorenzo Insigne's penalty three minutes from time denied England another impressive World Cup warm-up friendly after Vardy scored earlier.
The World Cup, which takes place from June 14-July 15, will see VAR used to judge whether or not a goal has been scored.
Defeat at the hands of Newcastle at the weekend left Jose Mourinho's men second in the Premier League but just four points clear of Tottenham in fifth as the race for the top four heats up.
Spain's La Liga will use the Video Assistant Referee system next season, the country's football federation confirmed.