Captain Marc Murphy has been ruled out for up to three weeks, after having surgery on his fractured cheekbone.
As the Blues have a bye in round 13, it means Murphy could return for the round 15 clash with Collingwood.
Meanwhile Mitch Robinson has a badly bruised shoulder, after landing heavily in last week's match against Hawthorn.
Robinson will be tested at training.
But there's good news for new recruit Nick Graham, who made a successful return from a knee injury in the VFL.
While Carlton vice captain Andrew Carrazzo is likely to return from his calf injury through the VFL this weekend, and line up for the Northern Blues when they take on Williamstown on Saturday.
CARLTON INJURY UPDATE
Andrew Carrazzo
Calf
Test
David Ellard
Calf
3 weeks
Patrick McCarthy
Foot
7 weeks
Marc Murphy
Cheekbone
3 weeks
Rhys O’Keeffe
Foot
Indefinite
Mitch Robinson
Shoulder
Test
