Chinese gymnast Shang Chunsong acts during a training session at the Rio Olympic Arena in Rio de Janeiro, Brazil, on Aug. 4, 2016. Olympic gymnastics competitions are scheduled to start on Aug. 6. (Xinhua/Zheng Huansong)
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Chinese gymnast Shang Chunsong acts during a training session at the Rio Olympic Arena in Rio de Janeiro, Brazil, on Aug. 4, 2016. Olympic gymnastics competitions are scheduled to start on Aug. 6. (Xinhua/Zheng Huansong)
