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Niklas Mattsson of Sweden competes during the men's slopestyle final at FIS Freeski and Snowboard World Cup in Chongli of Zhangjiakou City, north China's Hebei Province, Dec. 21, 2018. (Xinhua/Cao Can)
Niklas Mattsson of Sweden competes during the men's slopestyle final at FIS Freeski and Snowboard World Cup in Chongli of Zhangjiakou City, north China's Hebei Province, Dec. 21, 2018. (Xinhua/Cao Can)