VARs have been used in major European football leagues and international tournaments as part of an ongoing trial, but some players remain unconvinced
A video assistant referees, or VAR, is set to feature in an official game in the United Kingdom for the first time on Friday, as England host Germany in a friendly at Wembley. The system is already used in several high-profile leagues, but the ongoing trial has not gone totally smoothly. Here is the lowdown on football’s next big technological step:
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