According to 7NEWS, Curnow sought out advice in the past 24 hours on his injury, and more surgery is “looming”, which could see him in doubt for a round one return.
Curnow was set to return to running before Christmas, but that now looks unlikely if surgery is on the table.
The 22-year-old suffered a knee injury in early October, and had surgery which was a ligamentous repair to stabilise the patella.
Earlier this month, Curnow told 7NEWS he planned to be up and running by mid-December.
MORE TO COME.