Gennady Golovkin's greatest hits
Watch some of the best moments from the career of Gennady Golovkin leading up to his Sept. 15 rematch with Canelo Alvarez on HBO Pay-Per-View.
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Watch some of the best moments from the career of Gennady Golovkin leading up to his Sept. 15 rematch with Canelo Alvarez on HBO Pay-Per-View.
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