The Serbian dropped just three games in a straight sets victory over Adrian Mannarino.
Novak Djokovic is safely through to the quarter finals at the Australian Open.
He dropped just three games in a straight sets victory over Adrian Mannarino.
Elsewhere overnight, there were wins for Taylor Fritz and Jannik Sinner.
On course at the moment, it's one set apiece between Alex De Minaur and Andrey Rublev.
Coco Gauff is through to the quarter finals in the women's singles, after a straight sets win over Magdalena Frech.
Aryna Sabalenka, Marta Kostyuk and Barbora Krejcikova are also into the last eight.

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