First, we were informed that USADA retested previously submitted samples from Frank Mir, subsequently finding further evidence of turinabol use. Then, just a few weeks later, we were alerted that USADA discovered a prohibited substance in a sample of Jessica Penne’s that had also been previously declared clean.
Retesting of old anti-doping samples has also been in the news outside of MMA over the last year; many Russian athletes who doped at the 2008 and 2012 Olympics were caught by the retesting of old samples, including over a dozen medalists.