"However, the fight was canceled when the WBC withdrew its sanction of the bout because Povetkin tested positive for the banned substance ostarine in a random Voluntary Anti-Doping Association drug test conducted under the WBC's Clean Boxing Program, which allows for random testing at any time.
Povetkin provided the sample on Dec. 6 and VADA notified the fighters and organization of the failed test on Saturday.
"The WBC hereby withdraws its sanctioning of the bout for the heavyweight interim world championship and will conduct a thorough investigation of the circumstances of the case and will issue subsequent rulings as required," the WBC wrote in its ruling.
Ostarine, which is supposed to increase stamina and recovery ability, has been on the World Anti-Doping Agency banned list since 2008."
....
"It is Povetkin's second canceled fight because he tested positive for a banned substance this year. He was the mandatory challenger and due face Wilder on May 21 in Moscow. The fight was canceled nine days beforehand, when Povetkin (30-1, 22 KOs), 37, failed a VADA test for the banned substance meldonium, which he claimed he ingested before the drug was added to the WADA banned list in January.
The WBC ultimately elected to not punish Povetkin because the amount of the substance in his system was far below the threshold accepted by WADA in an updated notice on the drug published in June. There remain questions, however, about how Povetkin could have tested negative in random VADA doping tests conducted April 7, 8 and 11 while his April 27 sample -- the A and the B -- was positive for meldonium."
From my man Dan Rafael (who knows more about boxing than me and you and everyone on here put together).
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www.espn.com]
PS Same thing happened to Jon Jones and Brock Lesnar (UFC) recently. With the new drug-testing systems in place, they test them at all times so it's not "shocking" or "weird" or "conspiracy" that he got caught.