The Australian signed for Newcastle on a six-year deal from A-League side Melbourne Heart in the summer but is yet to make his debut for the Magpies.
Phil Parkinson: "He had a bit of fatigue from some training and I didn't feel confident putting him on the bench.
"I hope he'll be a good addition because he's a very good player.
"I felt it was best to leave him for now so that he is prepared and ready to go next week."