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SAO PAULO, BRAZIL - APRIL 24: Daniel Dias of Brazil competes in the Men's 50 meters freestyle final at Ibirapuera Sports Complex during day two of the Caixa Loterias 2015 Paralympics Athletics and Swimming Open Championships on April 24, 2015 in Sao Paulo, Brazil. (Photo by Alexandre Schneider/Getty Images)

SAO PAULO, BRAZIL - APRIL 24: Daniel Dias of Brazil competes in the Men's 50 meters freestyle final at Ibirapuera Sports Complex during day two of the Caixa Loterias 2015 Paralympics Athletics and Swimming Open Championships on April 24, 2015 in Sao Paulo, Brazil. (Photo by Alexandre Schneider/Getty Images)