Heavyweight titleholder Deontay Wilder's defense against mandatory challenger Alexander Povetkin was called off Sunday in the wake of Povetkin's positive test for the banned substance meldonium.
Heavyweight contender Alexander Povetkin has tested positive for the banned substance meldonium, putting his mandatory shot at world titleholder Deontay Wilder in jeopardy. Russia's Povetkin, who is ...
Russian heavyweight contender Alexander Povetkin used the substance meldonium after it was banned by the World Anti-Doping Agency on Jan. 1, 2016, a jury ruled Monday in U.S. federal court in New York ...
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