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

The Irvine native and 19-year-old qualifier, who played one semester at USC, wins a 4-hour, 49-minute thriller that ends at nearly 3 a.m. in Melbourne

Last year's runner-up Daniil Medvedev destroyed his racquet and avoided a huge shock at the Australian Open on Tuesday to join a rampant Taylor Fritz and veteran Gael Monfils in

Daniil Medvedev earns code violation for racket abuse before rallying past wild card entrant; Taylor Fritz carries U.S. banner forward.

On day three in Melbourne, two Americans turned Rod Laver Arena into a nervous wreck, a 17- and 38-year-old stole the show, and Daniil Medvedev ... NCAA champions Emma Navarro and Peyton Stearns ...

There are six American men and five American women in the third round. Tommy Paul, Coco Gauff and Jessica Pegula all play Thursday. No. 17 Frances Tiafoe, a two-time U.S. Open semifinalist, was upset by Hungary’s Fábián Marozsán in five sets in the second round.

American Learner Tien upset No. 5 seeded Daniil Medvedev 6-3, 7-6 (4), 6-7 (8), 1-6, 7-6 (10-7) at the 2025 Australian Open, in a 4-hour, 49-minute match that began Thursday night and ended early Frid

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 Margaret Court Arena.

Three-time Australian Open finalist Daniil Medvedev smashed his racket ... Holger Rune was pushed all the way to five sets and Emma Navarro also had a tough time in one of three all-American ...

Three-times Australian Open finalist Daniil Medvedev allowed his frustrations to boil over in a Melbourne Park meltdown before advancing to the second round on Tuesday while Taylor Fritz made a strong start in his bid to end a 22-year Grand Slam drought for American men.

Brazilian teenager Joao Fonseca stunned ninth seed Andrey Rublev in a major Australian Open shock on Tuesday as racquet-smashing 2024 finalist Daniil Medvedev narrowly avoided the same fate.

Last year's runner-up Daniil Medvedev smashed his racquet and avoided a huge shock at the Australian Open on Tuesday before joining a rampant Taylor Fritz and veteran Gael Monfils in