Defending champion Jannik Sinner has moved into the quarterfinals at the Australian Open after beating Holger Rune during a match slowed down by medical timeouts for each player and a delay because the net got knocked loose.

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,

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.

Defending champion Jannik Sinner raced into the Australian Open semi-finals on Wednesday in imperious fashion after Iga Swiatek was equally ruthless to close on a first Melbourne crown.

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 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 ...

MELBOURNE, Australia — First came the medical timeouts, one each for Jannik Sinner and Holger Rune with ... Elina Svitolina of Ukraine writes a message on a television screen following her ...

MELBOURNE, Australia — First came the medical timeouts, one each for Jannik Sinner and Holger Rune with the temperature above 90 degrees Fahrenheit (32 Celsius) at the Australian Open.

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.

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.