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Claressa Shields wants to prove she is 'greatest women fighter of all time' against Christina Hammer | Boxing News | Sky Sports
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Claressa Shields unifies middleweight titles, then calls out Savannah Marshall | Boxing | The Guardian
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Claressa Shields Dominates Christina Hammer In 'Most Significant Women's Boxing Match Of All-Time' - Queensberry Rules
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Claressa Shields v Christina Hammer: Shields unifies middleweight division after unanimous decision - BBC Sport
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Claressa Shields outpoints Christina Hammer to unify middleweight championship – as it happened | Boxing | The Guardian
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Claressa Shields dominates Christina Hammer to become undisputed women's middleweight champion - CBSSports.com
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