While VAR has divided opinion, the technology also has the power to ensure that some of the greatest footballing injustices of past World Cups are not repeated.
The FIFA World Cup has delivered some of football's greatest moments, but it has also been the stage for challenges so brutal they remain infamous decades later.
From flying karate kicks to bone-crunching collisions, these tackles crossed the line between competitive football and outright violence.
When the pressure of representing an entire nation reaches boiling point, discipline can disappear in an instant. Some players paid the price with red cards, others somehow escaped punishment altogether.
No incident better illustrates that than the clash between West Germany goalkeeper Harald Schumacher and France's Patrick Battiston during the 1982 semi-final.
