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Rebecca Soni broke a world record for the second straight day. (Fabrice Coffrini -- AFP/Getty Images)

Rebecca Soni broke a world record for the second straight day. (Fabrice Coffrini — AFP/Getty Images)

US swimmer Rebecca Soni swims to win gold and break the world record in the women’s 200m breaststroke final swimming event at the London 2012 Olympic Games on August 2, 2012 in London. AFP PHOTO / FABRICE COFFRINIFABRICE COFFRINI/AFP/GettyImages