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

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, 7-6 (7).

MELBOURNE, Australia -- Learner Tien ... American man to reach the Australian Open's third round since Pete Sampras in 1990, upsetting a racket-tossing Daniil Medvedev 6-3, 7-6 (4), 6-7 (8 ...

The 19-year-old American upset fifth-seeded Daniil Medvedev in a five-set Australian Open marathon that lasted nearly five ...

MELBOURNE– Inspired American teenager Learner Tien outlasted three-time Australian Open runner-up Daniil Medvedev to reach the third round with a 6-3 7-6(4) 6-7(8) 1-6 7-6(7) victory in a late-night ...

Learner Tien stunned 5th seed Daniil Medvedev in five sets at the 2025 Australian Open on Thursday. The 2nd-round match at the Margaret Court Arena saw Medvedev suffer a shocking defeat. Tien stunned ...

Copyright 2025 The Associated Press. All Rights Reserved. Daniil Medvedev of Russia reacts during his second round match ...

Daniil Medvedev has been fined for misconduct after his shocking defeat in the second round of the Australian Open 2025.

But the much heavier fine of the two – a $107,000 fine – was for “inappropriate behaviour” during his second-round defeat to ...

American teen Learner Tien pulled off the biggest upset so far at the 2025 Australian Open, ousting Russian Daniil Medvedev -- the No. 5 player in the world -- in a 4-hour, 49-minute thriller at ...