Everything that Jannik Sinner means to the summit of men's tennis could be temporarily wiped away in just a few months.

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.

Swiatek will face No. 19 Madison Keys of the U.S. on Thursday night for a berth in the final. The other women’s semifinal is No. 1 Aryna Sabalenka, the two-time defending champion, against her good friend, No. 11 Paula Badosa.

Follow reaction as Sinner retained the championship with a brilliant showing against three-time major final loser Zverev on Rod Laver in Melbourne

Jannik Sinner and Elina Svitolina won their respective Round 3 matches and advanced to the pre-quarters. While Sinner beat Marcos Giron in straight sets, Svitolina got the better of Jasmine Paolini.

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.

Elina Svitolina of Ukraine gestures during her fourth round ... (AP Photo/Manish Swarup) Jannik Sinner of Italy reacts during his fourth round match against Holger Rune of Denmark at the ...

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 has become the center of much debate following his brilliant run at the Australian Open. The Italian tennis phenom, fresh off his title defense in Melbourne, grabbed attention not only for his on-court success but also for rejecting an invitation to visit the Quirinale presented by Italian President Sergio Mattarella.

Rani Devrani Singh alleged that at around 9 pm on January 25, Umesh Kumar arrived at her residence in Roorkee's Landhora with three vehicles and created a ruckus. Haridwar police engaged in investigation, has registered a case on Rani Devrani's complaint in Roorkee's Civil Line police station and started investigation.

Jannik Sinner just won his 20th consecutive match ... "For several years, Tennis Australia has publicly and privately supported Ukraine athletes and sought and abided by federal government policy ...