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Bizarre photo reveals high-tech World Cup footballs need to be charged up before being used in games | Daily Mail Online
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World Cup 2022: Qatar 2022 World Cup balls are so hi-tech that they need to be charged before games | Marca
adidas - miCoach smart-ball Featuring built-in sensors designed to improve technique, power, spin and accuracy for the modern footballer. Set for release in 2014. | Facebook
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Explained: FIFA reveals how adidas match ball technology showed Ronaldo didn't score goal against Uruguay | Goal.com
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Cristiano Ronaldo: Adidas technology proves Portugal captain did not score opener against Uruguay at World Cup | Football News | Sky Sports
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