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South African swimmer Chad Le Clos reacts during a press conference of FINA/airweave Swimming World Cup Doha-Qatar 2017 in Doha, capital of Qatar, on Oct. 3, 2017. (Xinhua/Nikku)

South African swimmer Chad Le Clos reacts during a press conference of FINA/airweave Swimming World Cup Doha-Qatar 2017 in Doha, capital of Qatar, on Oct. 3, 2017. (Xinhua/Nikku)