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

Learner Tien, a 19-year-old qualifier from California, notched the biggest upset of the 2025 Australian Open to date by beating No. 5 seed and 2024 finalist, Daniil Medvedev, in five sets. Tien won 6-3,

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

In the Australian Open Round of 64 on Wednesday, we have a matchup featuring No. 5-ranked Daniil Medvedev against No. 121 Learner Tien.In Tien’s most recent competition, he fell to Arthur

Well into the early hours of the morning in Melbourne, Daniil Medvedev has been dumped out of the Australian Open as Learner Tien became the teacher in seeing off the three-time finalist in a deciding set epic.

Daniil Medvedev’s “Dead Fish” celebration at the end of the 2021 U.S. Open final stands out as among the most unusual and unexpected reactions to a major tennis championship

Daniil Medvedev used his racket to smash a tiny camera attached to the net at the Australian Open while he was trailing someone ranked 418th before eventually avoiding a monumental upset and winning 6-2, 4-6, 3-6, 6-1, 6-2 in the first round at Rod Laver ...

Daniil Medvedev has been fined $73,000 after smashing cameras with his racquet and missing a press conference at the 2025 Australian Open.

Daniil Medvedev has been fined a total of $76,000 for his camera and racket smashing outbursts during the first two rounds of the Australian Open. The fines were published Sunday by Australian Open organizers,

World No. 5 Daniil Medvedev has been fined more than US$76,000 for two separate incidents which occured during his first and second-round matches at the Australian Open.

American teen Learner Tien pulled off the biggest upset so far at the 2025 Australian Open, ousting Russian Daniil Medvedev -- the No. 5 player in the world -- in a 4-hour, 49-minute thriller at Margaret Court Arena.