United States' Claressa Shields reacts following a fight against Kazakhstan's Marina Volnova in a women's middleweight 75-kg semifinal boxing match at the 2012 Summer Olympics, Wednesday, Aug. 8, ... more 
United States' Claressa Shields reacts following a fight against Kazakhstan's Marina Volnova in a women's middleweight 75-kg semifinal boxing match at the 2012 Summer Olympics, Wednesday, Aug. 8, 2012, in London. (AP Photo/Patrick Semansky) less 
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Wed, Aug 8, 2012 12:41 PM EDT