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 racket-tossing Daniil Medvedev 6-3,

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,

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

Learner Tien has stunned the tennis world, claiming an upset victory over Daniil Medvedev at the Australian Open.

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

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).

Tien caused an upset at the Australian Open on Thursday, dumping out No. 5 seed Daniil Medvedev in a five-set thriller.

American qualifier Learner Tien enjoys a pepperoni pizza after defeating former world number one Daniil Medvedev in a five-set match that didn't finish until almost 3am.

USA wildcard Learner Tien has stunned the world by upsetting last year's runner-up Daniil Medvedev after a gruelling five-set marathon.

Watch the match highlights between Learner Tien & Daniil Medvedev in Round 2 of the 2025 Australian Open Men's Singles Tournament Tennis.