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 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.

The Australian Open 2025 has already seen its fair share of nail-biting encounters, with the spotlight shining on two standout performers. Teenage sensation Learner Tien stunned the tennis world ...

Here is everything you need to know about Learner Tien vs. Lorenzo Sonego, including TV and streaming options for the match.

There's been a stunner at the Australian Open, and it came from an American teenager. Qualifier and 19-year-old Learner Tien beat No. 5-ranked and three-time Australian Open finalist Daniil ...

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 ...