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.

MELBOURNE, Australia (AP) — 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 ...

At 19, Learner Tien is also the youngest American man to reach the third round of the Australian Open since Pete Sampras in 1990. He is only ranked 121th in the world.

Learner Tien of the U.S. celebrates after defeating Corentin Moutet of France in their third round match at the Australian Open tennis championship in Melbourne, Australia, Saturday, Jan. 18, 2025.

Irvine native and former USC player Learner Tien celebrates after winning his second-round match against fifth-seeded Daniil Medvedev at the Australian Open on Friday, Jan. 17, 2025, in Melbourne.

Learner Tien of the U.S. celebrates after winning his second round match against Daniil Medvedev of Russia at the Australian Open tennis championship in Melbourne, Australia, in the early hours of ...

Learner Tien of the U.S. celebrates after defeating Corentin Moutet of France in their third round match at the Australian Open tennis championship in Melbourne, Australia, Saturday, Jan. 18, 2025.

MELBOURNE, Australia (AP) — 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 ...

Sports Learner Tien beats Daniil Medvedev and is the youngest US man in Australia’s 3rd round since Sampras Jan. 16, 2025 at 8:03 am Updated Jan. 16, 2025 at 9:17 am ...