Copyright 2025 The Associated Press. All Rights Reserved. Daniil Medvedev of Russia reacts during his second round match against Learner Tien of the U.S. at the ...

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,

American teenager Learner Tien produced arguably the biggest shock of the Australian Open so far as he defeated last year’s runner-up Daniil Medvedev in five sets, 6-3, 7-6 (4), 6-7 (8), 1-6, 7-6 (7).

Daniil Medvedev was handed some hefty fines for his actions at this year's Australian Open. He was fined $10,000 for banging his racket against the net and damaging a camera in the process, then he was fined $66,

Three-time Australian Open finalist Daniil Medvedev's hopes for a fourth final were dashed in a stunning second-round exit on Thursday, as he was defeated by American qualifier Learner Tien in a dramatic five-set contest at Margaret Court Arena.

World No.5 Daniil Medvedev has been whacked with fines totalling more than $120,000 for two incidents in his first and second round matches at the Australian Open, including when he whacked a net camera and destroyed his racquet. But the much heavier fine ...

The 19-year-old American upset fifth-seeded Daniil Medvedev in a five-set Australian Open marathon that lasted nearly five hours.

Learner Tien became the first qualifier to claim an ATP top-five win at the Australian Open since Guillermo Garcia Lopez, who defeated Carlos Moya in 2005

Daniil Medvedev of Russia reacts during his round 2 match against Learner Tien of USA during the 2025 Australian Open at Melbourne Park in Melbourne, Thursday, January 16, 2025. / IMAGO / AAP ...

The Irvine native and 19-year-old qualifier, who played one semester at USC, wins a 4-hour, 49-minute thriller that ends at nearly 3 a.m. in Melbourne

Daniil Medvedev has been fined a total of USD 76,000 for his camera and racket smashing outbursts during the first two rounds of the Australian Open.