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MANAUS, BRAZIL - AUGUST 04: Sadiq Umar player of Nigeria celebrates his goal during 2016 Summer Olympics match between Japan and Nigeria at Arena Amazonia on August 04, 2016 in Manaus, Brazil. (Photo by Levi Bianco/Brazil Photo Press/LatinContent/Getty Images)

MANAUS, BRAZIL - AUGUST 04: Sadiq Umar player of Nigeria celebrates his goal during 2016 Summer Olympics match between Japan and Nigeria at Arena Amazonia on August 04, 2016 in Manaus, Brazil. (Photo by Levi Bianco/Brazil Photo Press/LatinContent/Getty Images)