North Melbourne midfielder Paul Ahern has been placed on the club’s long-term injury list.
Ahern was traded from Greater Western Sydney to the Kangaroos in October for pick 69.
The 20-year-old is a long-term prospect for the Kangas, given he underwent two knee reconstructions last year.
North haven’t nominated a replacement from the rookie list as yet.
Ahern, a former No.7 draft pick, is yet to make his AFL debut.