Video assistant referees: everything you need to know Read more“If we’re saying that 4% of decisions are wrong, a 2% improvement is good for the game,” Riley said. However, Riley stressed at a media demonstration that VAR will focus on “clear and obvious” errors, noting that the aim is for “minimum interference, maximum benefit”. The referee can use VAR on decisions concerning the awarding of goals, penalty kicks, the issuing of straight red cards and cases of mistaken identity. The referee can request assistance with these decisions or it can be recommended by the video officials, but the referee has the final say. Riley, who insisted that linesmen will not be rendered obsolete by the system, said referees will need to relearn their skills.
Source: The Guardian January 07, 2018 22:30 UTC