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?

Learner Tien, a 19-year-old from California, became the youngest American man to reach the Australian Open's third round since 1990, upsetting No. 5 Daniil Medvedev in five sets.

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,

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

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).

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.Tien took an early two-set lead (6–3,

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

The 19-year-old from Irvine, California nearly lost a two-set lead from match point up but held off a late surge from a former world No. 1 to win the biggest match of his career.

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 Beats Daniil Medvedev and Is the Youngest US Man in Australia's 3rd Round Since Sampras MELBOURNE, Australia (AP) — Learner Tien, a 19-year-old qualifier from California ...

Qualifier and 19-year-old Learner Tien beat No. 5-ranked and three-time Australian Open finalist Daniil Medvedev in a five ... A native of Irvine, California, Tien was a successful juniors ...

2018 — Houston guard James Harden puts up highest scoring triple-double in NBA history (60 points, 10 rebounds, 11 assists) as the Rockets beat Orlando Magic, 114-107 in Houston. 2022 - Australian Open Men’s Tennis: Rafael Nadal wins record 21st Grand Slam singles title with an epic 2-6, 6-7, 6-4, 6-4, 7-5 win over Daniil Medvedev of Russia.