The Irvine native and 19-year-old qualifier, who played one semester at USC, wins a 4-hour, 49-minute thriller that ends at ...
Furious Daniil Medvedev battles qualifier Learner Tien, Emma Raducanu issues injury update - Raducanu set up a clash with Iga ...
Tien, 19, become youngest American man to reach the Australian Open's third round since Pete Sampras did so aged 18 in 1990.
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