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RIO DE JANEIRO, BRAZIL, AUGUST 11: Under 78kg judo gold medallist, Kayla Harrison of the USA, poses for a young fan's 'selfie' with her gold medal during day 6 at the 2016 Rio Olympics on August 11, 2016 held at the Carioca Arenas 2, Barra, Rio de Janeiro, Brazil. (Photo by David Finch/Getty Images)