Arthur Ashe Kids' Day of U.S. Open held in New York
Source: Xinhua| 2018-08-26 13:20:42|Editor: Yurou
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Tennis player Novak Djokovic attends a tennis technique competition during the Arthur Ashe Kids' Day of the U.S. Open in New York, the United States, Aug. 25, 2018. (Xinhua/Wang Ying)
