Stefanos Tsitsipas of Greece celebrates during the singles first round match against Florian Mayer of Germany at the ATP Qatar Open in Doha, Qatar, Jan. 1, 2018. Tsitsipas won 2-1. (Xinhua/Nikku)
In pics: singles first round matches at ATP Qatar Open
Source: Xinhua| 2018-01-02 09:26:42|Editor: Mengjie
KEY WORDS:Qatar Open
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