Stefanos Tsitsipas has beaten Tallon Griekspoor in straight sets to advance to the fourth round.
After a strong start, the world No.4 had a wobbly moment in the second set but was back to his best in the third to close it out over his Dutch opponent.
The third seed from Greece takes is 6-2, 7-6, 6-3.
Stefanos Tsitsipas is into week 2 of the Australian Open without dropping a set.
Stefanos Tsitsipas is more relaxed than I've ever seen him in this on court interview. "I had the crowd with me as always, it's always a great sensation when I'm out here. If there are any real estate brokers, please let me know."
Sinner takes on Tsitsipas in the Round of 16 of the Australian Open.