"http://espn.go.com/mlb/story/_/id/7608360/ryan-braun-wins-appeal-50-game-suspension"
"Braun didn't argue evidence of tampering, didn't argue anything about science being wrong but argued protocol had not been followed. A second source confirmed to ESPN investigative reporter Mark Fainaru-Wada that Braun did not dispute the science but rather questioned chain of custody/collection procedure.
According to one of the sources, the collector, after getting Braun's sample, was supposed to take the sample to FedEx/Kinkos for shipping but thought it was closed because it was late on a Saturday. As has occurred in some other instances, the collector took the sample home and kept it refrigerated. Policy states that the sample is supposed to get to FedEx as soon as possible.
Braun's initial T/E ratio was more than 20:1. And sources previously confirmed synthetic testosterone in his system. Source says MLB is livid and is considering options and other comment."