Busted for PEDs 22-year-old Duarte tested positive for ostarine, a substance that is described by USADA as “a non-Specified Substance in the class of Anabolic Agents“. It is prohibited at all times under the World Anti-Doping Code and the standard USADA Protocol for Olympic and Paralympic Movement Testing, the same standard applied to the 2019 IBJJF World Jiu-Jitsu Championships. Kaynan is the 7th BJJ athlete to be caught by the anti-doping agency since testing started back in 2013. The previously banned athletes being: Braulio Estima, Gabi Garcia, Felipe Pena, Paulo Miyao, Leo Nogueira and Tayane Porfirio Spoiler https://www.bjjheroes.com/bjj-news/...9uKlNRHvQtFNYU7Au-4B9jJz1GYGzb7Rp_J32TyY3kuYk No surprising. Dude looked like a prime mark kerr.