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World Championship Boxing: Lomachenko vs. Sosa/Gvozdyk vs. Gonzalez
HBO World Championship Boxing Preview: Lomachenko vs. Sosa, Gvozdyk vs. Gonzalez, Usyk vs. Hunter By: William Holmes On Saturday night in Oxon Hill, Maryland the Theater at the MGM National Harbor will be the host site for the next installment of HBO World Championships Boxing.