Tom Taylor

A reporter-researcher for SI since 2014, Tom Taylor writes about sports and science/technology for SI and SI.com. Taylor has a PhD in Aeronautics and Astronautics from Stanford.

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NFL players have signed a five-year deal with WHOOP, a biometric performance company that measures workout strain, recovery, and quality of sleep via a wearable band. If teams want to see the data, they’re going to have to pay up . . . but they won’t be the only customers