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Claressa Shields dominates Christina Hammer to become undisputed women's middleweight champion - CBSSports.com
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Claressa Shields vs. Christina Hammer round-by-round results, live updates, highlights | Sporting News Canada
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CLARESSA SHIELDS & CHRISTINA HAMMER FIRED UP AT WEIGH IN! COME FACE TO FACE 1 DAY BEFORE FIGHT! - YouTube
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Christina Hammer talks undisputed title fight against Claressa Shields, what it means for women's boxing | Sporting News
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