India, June 15 -- Monday morning saw a seldom-used VAR technology in action at the FIFA World Cup, with cricket-style "Snicko" being used to award Sweden's fourth goal against Tunisia.

In the 84th minute of the match, Swedish midfielder Mattias Svanberg thought he had scored from Yasin Ayari's free-kick, but the goal was ruled out with the player adjudged to have been offside. Sweden, however, protested the decision, with captain Victor Lindelof and striker Alexander Isak demanding a VAR review. Isak was adamant that he had touched the ball before it had reached Svanberg, who would have therefore been onside.

A lack of clear visual evidence could have doomed Sweden's hopes, but for a microchip inside the Adidas Trionda match ball, which...