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Football's law-making body on Saturday was set to approve the use of video assistant referee technology (VAR) at this summer's World Cup, overriding purists concerned about technology disrupting the game. The International Football Association Board (IFAB) meeting in Zurich is widely expected to rubber-stamp the move already backed by FIFA's top brass, including president Gianni Infantino. VAR can only be used when there is doubt surrounding any of four key game-changing situations: after a goal, penalty decisions, after a straight red card or in cases of mistaken identity.