Meanwhile, Madison Keys is out after losing to Jessica Pegula in in the fourth round.
Defending men's champion Jannik Sinner beat fellow Italian Luciano Darderi in three sets to book his place in the quarter finals of the Australian Open.
Defending women's champion Madison Keys is out after losing to Jessica Pegula in in the fourth round.
Iga Swiatek booked her place in the quarter final with a straight sets win over Maddison Inglis.
Meanwhile, tomorrow's play will be impacted by extreme heat once again - with temperatures expected to reach 45 degrees in Melbourne.
The roofs of the show courts are expected to be closed.

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