The official 'Al Rihla' footballs used for the World Cup in Qatar are so high-tech they don't just need to be pumped full of air - they need to be charged. Manufactured by Adidas, the ball, which takes its name from the Arabic word for 'the journey', has a sensor inside that measures data like speed and direction and allows for ball-tracking and offside calls by the VAR.An incredible photo posted on shows the fluro-coloured balls being charged, like a smartphone, from a power board before a game.
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