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 suffered from ‘uncontrollable shaking’ during his win over Holger Rune at the Australian Open on Monday to leave fans worried. Italian star Sinner, the top seed in the men’s singles at Melbourne Park,

The 23-year-old Italian’s next opponent in Australia will be No. 13 Holger Rune, who beat Miomir Kecmanovic 6-7 (5), 6-3, 4-6, 6-4, 6-4.

The Australian Open semi-final line-up will be confirmed at the close of play on day 11 and bookmakers expect defending men's champion Jannik Sinner to seal his place in the final four with victory over home favourite Alex de Minaur.

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

FILE - Italy’s Jannik Sinner returns the ball to Netherlands’ Tallon Griekspoor during the Davis Cup final tennis match between Netherlands and Italy at the Martin Carpena Sports Hall in Malaga, southern Spain, Sunday, Nov. 24, 2024. (AP Photo/Manu Fernandez, File)

The defending champion moved into the quarterfinals at Melbourne Park on Monday by eliminating the 13th-seeded Rune 6-3, 3-6, 6-3, 6-2.

The Day 9 of the Australian Open 2025 is underway at Melbourne Park as it promises to deliver some fantastic and exciting tennis. Jannik Sinner will battle it out against Holger Rune, while Gael Monfils will take on Ben Shelton.

Unseeded Lorenzo Sonego made it two Italians in the quarter-finals when he defeated hobbling 19-year-old American qualifier Tien 6-3 6-2 3-6 6-1, having also taken out Brazilian young gun Joao Fonseca in the second round.

Alex de Minaur’s mum was all of us as she watched her son move through to the quarter-finals of the Australian Open for the first time.

De Minaur is the first Aussie male to reach the last eight at Melbourne Park since Nick Kyrgios in 2015. The achievement was not lost on his mum Esther with video of her emotional response going viral. You can watch the adorable moment in the video player below.