Jannik Sinner battled through illness and reached the quarter-finals of the Australian Open on Monday but the physical demands of Grand Slam tennis proved too much for French veteran Gael Monfils and American teenager Learner Tien.

Jannik Sinner and Iga Swiatek progress to the quarter-finals of the Australian Open amid challenges. Sinner battled illness to defeat Dane Holger Rune. Meanwhile, Swiatek continued her quest for a maiden win by beating Eva Lys.

Iga Swiatek will look to continue her march to a maiden Australian Open title on Wednesday while Jannik Sinner's powers of recovery will be tested in a quarter-final against home

Novak Djokovic was at the centre of another Australian Open row on Monday while Jannik Sinner needed medical attention in fierce ... for a second successive day, Ukraine's Elina Svitolina beat Veronika Kudermetova -- then declined to shake the Russian's ...

Jannik Sinner battled through illness to reach the quarter-finals of the Australian Open on Monday as his Italian compatriot Lorenzo Sonego ended teenager Learner Tien's fairytale run.

Jannik Sinner continues to impress at the Australian Open, overwhelming Alex De Minaur to reach the semifinals of the event. Sinner, who is the defending champion at Melbourne Park, captured the quarterfinal matchup 6-3,

The final match of the day saw American Learner Tien, playing in his first major outside of the U.S. Open, upset No. 5 seed Daniil Medvedev in a five-set classic, 6-3, 7-6, 6-7, 1-6, 7-6, that ended at 2:54 a.m. local time. Medvedev had reached three of the past four Australian Open finals, but could not fend off a ferocious Tien.

Novak Djokovic was at the centre of another Australian Open row on Monday while defending champion Jannik Sinner needed medical attention in fierce heat to battle into the quarter-finals.

Jannik Sinner fought through illness to reach the Australian Open's quarter-finals, while Gael Monfils retired due to a back injury. Iga Swiatek continued her impressive form, defeating Eva Lys. Elina Svitolina uplifted Ukraine with her win,

Jannik Sinner and Iga Swiatek are eyeing a place in the Australian Open quarter-finals on Monday while golden couple Gael Monfils and Elina Svitolina hope to extend their family odyssey. Defending champion Sinner breezed through his third-round match in straight sets but his opponent Holger Rune was taken to five for the second time in three matches.

People follow a virtual speech of U.S. president Donald Trump at the Annual Meeting of World Economic Forum in Davos, Switzerland, Thursday, Jan. 23, 2025.