Horse racing world stunned as Kentucky Derby winner fails test, Baffert suspended
The news came as a shocker on Sunday morning: Kentucky Derby winner Medina Spirit had tested positive for an anti-inflammatory drug called betamethasone.
The drug is not banned, but there are limits, and the test showed 21 picograms (a picogram is one-trillionth of a gram) of the substance in the horse's system, which is more than twice the legal…
