Copyright 2025 The Associated Press. All Rights Reserved. Learner Tien of the U.S. celebrates after winning his second round match against Daniil Medvedev of Russia ...

George R. Tynan has received research funding from the US Department of Energy and the Office of Fusion Energy Sciences, and has served on numerous advisory panels to DOE and the International ...

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 ...

MELBOURNE, Australia — 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 ...

Learner Tien stunned the tennis world on Thursday, claiming an upset second round victory over Daniil Medvedev at the Australian Open. The teenage talent beat the No. 5 seed in a thrilling five ...

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.

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 ...

Learner Tien produced a stunning display to outlast three-time Australian Open finalist Daniil Medvedev in an enthralling four-hour, 49-minute second-round clash. Tien emerged a 6-3 7-6 (7-4) 6-7 ...

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 ...