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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 vs. Christina Hammer middleweight unification fight set for April on Showtime - CBSSports.com
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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 vs. Christina Hammer round-by-round results, live updates, highlights | Sporting News Canada
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