Chael Sonnen's UFC legacy may have been strong enough to survive his positive drug test in Nevada earlier this year, but tonight's news likely ends any talk that he was a "clean fighter."
Sonnen had failed a February test in Nevada when the drugs Clomiphene and Anastrozole showed up in his sample. Those were, Sonnen claimed, used to help his body produce testosterone naturally after Testosterone Replacement Therapy was banned by the Nevada State Athletic Commission. Those substances are banned by the World Anti-Doping Agency but they aren't necessarily considered major "performance enhancing drugs."
Now, Ariel Helwani is reporting at MMA Fighting that Sonnen failed a different drug test, this one administered in Portland, Ore. by the NSAC as he was booked to fight at UFC 175.
And the drugs in question are no doubt major PEDs.
Sonnen tested positive for Human Growth Hormone (HGH) and recombinant human erythropoietin (EPO). He also had traces of anastrozole and hCG, though those were drugs he had basically already admitted to using.
EPO allows your blood to carry more oxygen which significantly increases stamina (one of the key drugs involved with the Lance Armstrong scandal) and HGH is used to increase muscle mass in dramatic fashion.
Sonnen has already announced his retirement but this news likely significantly changes the way he will be viewed in the sport.