China's Chen Long returns the shuttlecock against Poland's Adrian Dziolko during a men's singles group play stage match of Badminton at the 2016 Rio Olympic Games in Rio de Janeiro, Brazil, on Aug. 13, 2016. Chen Long won 2-0. (Xinhua/Han Yan)
China's Chen Long returns the shuttlecock against Poland's Adrian Dziolko during a men's singles group play stage match of Badminton at the 2016 Rio Olympic Games in Rio de Janeiro, Brazil, on Aug. 13, 2016. Chen Long won 2-0. (Xinhua/Han Yan)
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