MELBOURNE, Australia (AP) — Learner Tien, a 19-year-old qualifier from California, became the youngest American man to reach the Australian Open's third round since Pete Sampras in 1990, upsetting a ...

Learner Tien is making his Australian Open debut this year and he hasn't taken too long to make the world sit up and take notice. The 19-year-old is playing a Grand Slam for just the second time in ...

During the fourth set of his marathon Australian Open match against one of the world’s top tennis players, 19-year-old Learner Tien had just one thing on his mind. He desperately needed a bathroom ...

Sinner rebounded from his U.S. Open disappointment by winning his third title of the season — his 21st overall — with a dominant performance against the 19-year-old Tien, who was playing in his first ...

Top-ranked Jannik Sinner will face U.S. teenager Learner Tien in the China Open final after both advanced Tuesday.

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USA’s Learner Tien celebrates victory against Russia’s Daniil Medvedev during their men’s singles match on day five of the Australian Open tennis tournament in Melbourne on January 17, 2025. (Photo by ...