The United States women’s national team went into the 2015 FIFA Women’s World Cup with a chip on their shoulder, trying to avenge a heartbreaking finals loss in 2011. But eagle-eyed viewers might have also noticed the chips the women wore under their shirts as well, as Will Carroll pointed out on Twitter.
The objects were Polar Global’s H7 heart rate sensors as suggested by this Wired article and confirmed by Polar Global. The USWNT is also listed as a client of Catapult, an Australian-based company that combines GPS and inertial measurement units (IMU) into a single sensor.
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