U.S. Anti-Doping Agency (USADA)
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Nate Diaz, of Stockton, Calif., admitted use of a prohibited substance during the in-competition period & has accepted a public warning for his violation.
On October 1, 2016, USADA celebrated its 16th anniversary dedicated to clean sport and clean athletes. View highlights from the last year.
Tom Danielson, of Longmont, Colo., an athlete in the sport of cycling, has accepted a four-year sanction for his second anti-doping rule violation.
Oscar Tovar, of Chia, Colombia, an athlete in the sport of cycling, has had his results disqualified for competing while ineligible.
Shawn D’Aurelio, of Dana Point, Calif., an athlete in the sport of cycling, has accepted a four-year sanction for an anti-doping rule violation.
