Learner Tien, a 19-year-old from California, took down top-seeded Alexander Zverev 6-3, 6-4 on Wednesday to advance to the ...
Zverev, the top seed at the Acapulco Open, went down 6-3 6-4 to the 19-year-old American on Wednesday. Tien, who claimed a ...
On Wednesday, the No. 1 seed was in action as he took on rising star Learner Tien. Before the match ... The 19-year-old, who ...
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