It took a matter of minutes before VAR left fans and pundits scratching their heads in the opening game of the World Cup between Qatar and Ecuador.
Former West Ham forward Enner Valencia thought he had given the South American nation the lead with a header following a glaring error by Qatar goalkeeper Saad Al Sheeb. However, after a lengthy check, VAR ruled the goal out for offside.
Al Sheeb had come off his line to try and punch the ball clear but miscued before Michael Estrada presented Valencia with a simple header with an acrobatic assist. It would have been the fastest opening goal in World Cup history at 160 seconds, but it was ruled out after a long check before play eventually resumed in the eighth minute.