David Epstein (journalist)

David Epstein is an investigative reporter at ProPublica and the author of the New York Times bestselling book The Sports Gene: Inside the Science of Extraordinary Athletic Performance, published by Penguin in August 2013. He previously was a senior writer at Sports Illustrated. He specializes in science issues in sports and investigative reporting.[1] With his colleague Selena Roberts, Epstein broke the story that the Yankees' Alex Rodriguez tested positive for steroids in 2003.[2]

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