MELBOURNE, Australia — Learner Tien and Alex Michelsen were born about 15 months apart and first crossed paths a decade ago when they were playing in Southern California tennis tournaments for kids.

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, upsetting a ...

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

Learner Tien pulled off the biggest victory of his life to headline a parade of 11 Americans moving into the third round of the Australian Open. Tien, a 19-year-old native of Irvine, Calif.

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 ...

Khuong Dan Tien and Huyen Tien are the parents of Learner Tien. His parents played tennis for recreational purposes and introduced their son to tennis. Tien picked up his tennis racket when he was ...

Learner Tien speaks to interviewers the way he plays tennis: without a lot of wasted motion. On Saturday, the 19-year-old was told that that the last player his age to reach the fourth round at ...

Former German player Andrea Petkovic has pointed out what she liked the most in youngsters Joao Fonseca, Jakub Mensik and ...

MELBOURNE, Australia — 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 ...

Qualifier and 19-year-old Learner Tien beat No. 5-ranked and three-time Australian Open finalist Daniil Medvedev in a five-set thriller 6-3, 7-6 (4), 6-7 (8), 1-6, 7-6 (7) for the biggest win of ...