ATP roundup: Adolfo Daniel Vallejo hangs on to win at Hangzhou

reuters

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No. 5 seed Adolfo Daniel Vallejo of Paraguay had seven aces and saved all four break points he faced ​while holding on for a 6-1, 6-7 (2), 6-4 victory ‌over China's Jie Cui to win his first-round match of the Hangzhou Open on Thursday in China.