WBC super featherweight champion Oscar Valdez 29-0 (23) has denied knowingly taking a banned substance following his positive test for Phentermine this week. Mexican Valdez, 30, was set to make the first defence of the 130-pound crown her won against countryman Miguel ‘El Alacran’ Berchelt 38-2 (24) by 10th round knockout in Las Vegas in […]

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