American qualifier Learner Tien shocked the tennis world on Thursday when he upset last year's Australian Open runner-up Daniil Medvedev in a nearly five-hour, five-set match in the second round.

The American, ranked 121 in the world, overcame the former world number one 6-3, 7-6 (7/4), 6-7 (8/10), 1-6, 7-6 (10/7) after four hours and 48 minutes of intense action at Margaret Court Arena.

Second-round action at the Australian Open has at last concluded, as LWOT recaps a grueling day of men’s tennis on Day 5 that ...

At the age of 19, Learner Tien defeated Daniil Medvedev in a five-set thriller that finished just before 3 a.m. in Melbourne.

Produced in-house by Tennis Australia, video game-like recreations of live matches featuring digital player avatars have been taking over the internet.

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The outcome was eyebrow-raising because of the wide gulf in experience and accomplishments between the two players at Margaret Court Arena.

Another day, another teenager ousting a top-10 player at the 2025 Australian Open. That has been the theme of the year's ...

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Learner Tien pulled off a massive upset against Daniil Medvedev at the Australian Open. So, who is Tien, the 19-year-old out ...

Learner Tien, a 19-year-old from California, became the youngest American man to reach the Australian Open's third round ...