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 has become the youngest American man to reach the Australian Open's third round since Pete Sampras in 1990.

Learner Tien, a 19-year-old qualifier from California, notched the biggest upset of the 2025 Australian Open to date by ...

Learner Tien, a 19-year-old qualifier from California, became the youngest American man to reach the Australian Open's third ...

American teenager Learner Tien produced arguably the biggest shock of the Australian Open so far as he defeated last year’s ...

Learner Tien, a 19-year-old from California, became the youngest American man to reach the Australian Open's third round ...

The final match of the day saw American Learner Tien, playing in his first major outside of the U.S. Open, upset No. 5 seed ...

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

Learner Tien achieved an unprecedented feat in the past 20 years following his stunning victory over Daniil Medvedev in the ...