"The system has to be put to a test, " Nikolayev said. "It would make sense to test it during a national championship prior to the 2018 World Cup. "
The electronic goal-line technology will automatically register the goal and instantly alert the referee to the fact that the football has crossed the goal line. The following goal-line systems have been approved for use: GoalRef, Hawk-Eye, and GoalControl-4D.
Goal-line technology passed its inaugural trial during the 2012 FIFA Club World Cup Japan in December 2012. It has since been used at the 2013 Confederations Cup, 2014World Cup Brazil, Euro 2016 in France, and 2016 European League finals.