Jannik Sinner advanced to the Australian Open quarter-finals, overcoming illness, while Lorenzo Sonego ended Learner Tien's dream run. Madison Keys surprised Elena Rybakina, and Elina Svitolina uplifted Ukraine by defeating Veronika Kudermetova.

Boulter vs Kudermetova result as Raducanu issues update on injury after win - Raducanu set up a clash with Iga Swiatek but battled through more injury worries in her win over Amanda Anisimova

Day nine of the Australian Open saw Lorenzo Sonego and Elina Svitolina advance to the quarter-finals with impressive wins. Jannik Sinner overcame a medical timeout to beat Holger Rune, while Madison Keys stunned Elena Rybakina.

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.

Follow live radio commentary of Katie Boulter in Australian Open second round - radio and live text later on Katie Boulter, Jannik Sinner and Daniil Medvedev.

MELBOURNE—Novak Djokovic was at the center of another Australian Open row on Monday while defending champion Jannik Sinner needed medical attention in

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

Day nine of the Australian Open sees Iga Swiatek's dominant win, Gael Monfils' retirement handing Ben Shelton a quarter-final spot, and drama as players including Jannik Sinner and Elina Svitolina advance amid challenging circumstances.

and plays the Russian player Veronika Kudermetova. The boy wonder is at it again: Joao Fonseca converts his fourth set-point to take the opening set against Lorenzo Sonego, much to the delight of ...

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The last of the Australian Open men's quarterfinals takes place in the wee hours of Wednesday morning, in the United States.

Follow Mail Sport's live blog for the latest score and game-by-game updates from the Australian Open as Alex de Minaur, Jannik Sinner and Iga Swiatek are all in quarter-final action.