Support WBURTeenager Claressa Shields Wins Historic Gold Medal In Women's BoxingPlay03:33Download AudioBill ChappellAugust 09, 2012 ShareU.S. boxer Claressa Shields (left) lands a punch on Nadezda Torlopova of Russia during the women's boxing middleweight final at the ExCel Arena in London. Shields, 17, won the first-ever gold medal in the event. (AFP/Getty Images)