Video assistant referee (VAR) is a system that helps referees to decide better about players fouls, if a goal was valid, red card decisions, etc. in soccer matches. When the referee is going to review a play on the field at the VAR box, they outline a square with their hands, as if showing the outline of a TV screen. It was used for the first time in the 2016 FIFA Club World Cup. It was used for the first time for international matches in the 2017 FIFA Confederations Cup. The first time VAR was used in the FIFA World Cup was in the 2018 World Cup.