STATSports: The training technology used by Arsenal, Man City

Ever wondered why players wear those black vests during training? As the 2016/17 season draws closer, Sky Sports investigate the cutting-edge technology being used by Premier League clubs
Why do players wear those black vests? We lift the lid on the cutting-edge technology used by Premier League clubs
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STATSports: The training technology used by Arsenal, Man City

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STATSports: The training technology used by Arsenal, Man City

STATSports: The training technology used by Arsenal, Man City