FIFA are concerned that technological gaffes are going to dominate the World Cup following a recent string of high-profile howlers.
Technology in football has always been a bit of a contentious subject. The introduction of VAR seems to have created as many problems as it's solved, and its application was called into serious question following several controversial decisions during the opening few rounds of the new Premier League season.
Even a seemingly streamlined systems, like goal-line technology, don't seem to be fool-proof either. British-based tech firm Hawk Eye were forced to apologise to Huddersfield Town this week after their computers failed to show that Yuta Nakayama’s shot had crossed the line in the Terriers' defeat to Blackpool.
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FIFA have since expressed concern over Hawk Eye's reliability, though they have no plans to change their tech provider before World Cup begins in November, despite the fact Hawk Eye use just 14 cameras while rival companies use up to 60.
In July, the governing body announced that brand new semi-automated offside technology will be used at the tournament in Qatar – tech that was trialled during Chelsea's 1-0 defeat to Dinamo Zagreb in the Champions League on Tuesday.
FIFA have of course had successes with World Cup trials before, with VAR, in its current form, being smoothly introduced at the 2018 tournament in Russia.
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Though Premier League fans have been up arms about the technology in the last few weeks following several crucial refereeing mistakes.
West Ham were furious when they were denied a late equaliser against Chelsea after a VAR review saw Jarrod Bowen penalised for an innocuous challenge on Edouard Mendy.
Blues fans will feel justice was served though after they had a win against Tottenham snatched from them last month when Cristian Romero was bafflingly allowed to stay on the pitch and net an injury time equaliser despite yanking Marc Cucurella's hair moments before.
Newcastle fans were similarly angry when officials disallowed their goal against Crystal Palace after deciding that Joe Willock had committed a foul in the build-up, despite the fact that he was very clearly pushed by a Palace player.
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