The 2025 Australian Open is still in the early stages, but it’s already produced some unexpected results. Unranked American teenager Learner Tien pulled off a massive upset with a 6-3, 7-6, 6-7, 1-6, 7-6 win against No. 5 Daniil Medvedev in second round action. Tien, the 19-year-old who needed to qualify in the week before official action began, countered every shot the Russian threw at him. It’s the latest in a stunning run for Medvedev, who had made the Australian Open final in three of the last four years. Tien takes on Frenchman Corentin Moutet in the third round on Saturday.
In addition, No. 7 Jessica Pegula was upset 7-6, 6-1 at the hands of unranked Olga Danilovic in the third round of the Grand Slam tournament. Pegula had reached the Australian Open quarterfinals in three of the past four years, and made it to the US Open Final in 2024.
Meanwhile, world No. 9 Andrey Rublev suffered a shocking first-round defeat of his own to another teenager in Joe Fonseca. The 18-year-old from Brazil was making his debut in the main draw of a Grand Slam. Additionally, No. 6 Casper Ruud fell to 19-year-old Jakub Mensik in the second round.
U.S. star Coco Gauff’s best result last year was reaching the semifinals at the Australian Open before falling to Aryna Sabalenka, and we could potentially see a rematch. Gauff is already through to the quarterfinals after taking care of business against Canadian Leylah Fernandez in the third round. Sabalenka is also back in the quarterfinals after handling Clara Tauson.
Meanwhile, two-time Australian Open champion Naomi Osaka took down No. 20 Karolina Muchova 1-6, 6-1, 6-3 and earned a ticket to the third round of a major tournament for the first time since 2022.
Where to watch the 2025 Australian Open
- Dates: Jan. 11-26
- Where: Melbourne Park, Australia
- Watch: ESPN, Tennis Channel
- Stream: fubo (try for free)
Notable men’s third round matches
- No. 1 Jannik Sinner vs. Marcos Giron
- No. 2 Alexander Zverev def. Jacob Fearnley 6-3, 6-4, 6-4
- No. 3 Carlos Alcaraz def. Nuno Borges 6-2, 6-4, 6-7, 7-2
- No. 4 Taylor Fritz vs. Gael Monfils
- No. 7 Novak Djokovic def. Tomas Machac 6-1, 6-4, 6-4
- No. 8 Alex de Minaur vs. No. 31 Francisco Cerundolo
Notable women’s third round matches
- No. 1 Aryna Sabalenka def. Clara Tauson 7-6, 6-4
- No. 2 Iga Swiatek vs. Emma Raducanu
- No. 3 Coco Gauff def. No. 30 Leylah Fernandez 6-4, 6-2
- No. 4 Jasmine Paolini vs. No. 28 Elina Svitolina
- Olga Danilovic def. No. 7 Jessica Pegula 7-6, 6-1
- No. 10 Danielle Collins vs. No. 19 Madison Keys
- No. 11 Paula Badosa def. No. 17 Marta Kostyuk 6-4, 4-6, 6-3
Notable men’s second round matches
- No. 1 Jannik Sinner def. Tristan Schoolkate 4-6, 6-4, 6-1, 6-3
- No. 2 Alexander Zverev def. Pedro Martinez 6-1, 6-4, 6-1
- No. 3 Carlos Alcaraz def. Yoshihito Nishioka 6-0, 6-1, 6-4
- No. 4 Taylor Fritz def. Cristian Garin 6-2, 6-1, 6-0
- Learner Tien def. No. 5 Daniil Medvedev 6-3, 7-6, 6-7, 1-6, 7-6
- Jakub Mensik def. No. 6 Casper Ruud 6-2, 3-6, 6-1, 6-4
- No. 7 Novak Djokovic def. Jaime Faria 6-1, 6-7 (4-7), 6-3, 6-2
- No. 8 Alex de Minaur def, Tristan Boyer 6-2, 6-4, 6-3
- Fabian Marozsan def. No. 17 Frances Tiafoe 6-7, 6-4, 3-6, 6-4, 6-1
Notable women’s second round matches
- No. 1 Aryna Sabalenka def. Jessica Bouzas Maneiro 6-3, 7-5
- No. 2 Iga Świątek def. Rebecca Sramkova 6-0, 6-2
- No. 3 Coco Gauff def. Jodie Anna Burrage 6-3, 7-5
- No. 4 Jasmine Paolini def. Renata Zarazua 6-2, 6-3
- Laura Siegemund def. No. 5 Qinwen Zheng 7-6 (7-3), 6-3
- No. 6 Elena Rybakina def. Iva Jovic 6-0, 6-3
- No. 7 Jessica Pegula def. Elise Mertens 6-4, 6-2
- No. 8 Emma Navarro def. Wang Xiyu 6-3, 3-6, 6-4
- No. 9 Daria Kasatkina def. Wang Yafan 6-2, 6-0
- No. 10 Danielle Collins def. Destanee Aiava 7-6, 4-6, 6-2
- Naomi Osaka def. No. 20 Karolina Muchova 1-6, 6-1, 6-3
Men’s Singles
- Jannik Sinner
- Alexander Zverev
- Carlos Alcaraz
- Taylor Fritz
- Daniil Medvedev
- Casper Ruud
- Novak Djokovic
- Alex de Minaur
- Andrey Rublev
- Grigor Dimitrov
- Stefanos Tsitsipas
- Tommy Paul
- Holger Rune
- Ugo Humbert
- Jack Draper
- Lorenzo Musetti
- Frances Tiafoe
- Hubert Hurkacz
- Karen Khachanov
- Arthur Fils
- Ben Shelton
- Sebastian Korda
- Alejandro Tabilo
- Jiri Lehecka
- Alexei Popyrin
- Tomas Machac
- Jordan Thompson
- Sebastian Baez
- Felix Auger-Aliassime
- Giovanni Mpetshi Perricard
- Francisco Cerundolo
- Flavio Cobolli
Women’s singles
- Aryna Sabalenka
- Iga Swiatek
- Coco Gauff
- Jasmine Paolini
- Qinwen Zheng
- Elena Rybakina
- Jessica Pegula
- Emma Navarro
- Daria Kasatkina
- Danielle Collins
- Paula Badosa
- Diana Shnaider
- Anna Kalinskaya
- Mirra Andreeva
- Beatriz Haddad Maia
- Jelena Ostapenko
- Marta Kostyuk
- Donna Vekic
- Madison Keys
- Karolina Muchova
- Victoria Azarenka
- Katie Boulter
- Magdalena Frech
- Yulia Putintseva
- Liudmila Samsonova
- Ekaterina Alexandrova
- Anastasia Pavlyuchenkova
- Elina Svitolina
- Linda Noskova
- Leylah Fernandez
- Maria Sakkari
- Dayana Yastremska