Bute challenged Jack for his coveted green belt last month and gave a credible performance in what seemed to be a victory for the champion.
Now, weeks later, the WBC has reported the presence of an adverse substance and has launched a formal inquiry into the test.
A statement sent to World Boxing News stated the following:
The World Boxing Council has been notified by the D. C. Boxing and Wrestling Commission about an adverse finding for the banned substance “Ostarine” in the post-fight anti-doping test from Lucien Bute.
Bute challenged Badou Jack for the WBC super middleweight championship in a fight that took place in Washington, D. C. on April 30, 2016, and resulted in a draw.
The D. C. Boxing and Wrestling Commission will follow its rules and regulations regarding anti-doping and will be in consultation with the WBC and its Clean Boxing Program.
Further news will be known in the coming days – WBC
Boxer Bute is the latest in a long line of former and present champions to be under suspicion of doping as the sport faces up to a spate of questionable tests due to new and enhanced measures of detection.
WBN Editor Phil has over ten years of boxing news experience. Follow WBN us on Twitter @WorldBoxingNews.