“This is absolutely devastating news for Aaron and the club, as he was preparing for the season ahead.”
The club said it would consider various treatment options.
“Aaron is a very impressive and resilient person, his professionalism can’t be questioned and the way he attacks his rehab is outstanding,” he said.
“This is really unfortunate for Aaron who was in great shape since returning from his previous knee injury.
“Unfortunately, he hasn’t been able to play consistent football since he was drafted due to injury.
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“We will work with Aaron and ensure all options are assessed before deciding the most appropriate treatment required to reconstruct the ACL.”
With Nietschke now eligible to be placed on the inactive list, the Dees could have an extra spot available for a player to be picked up via the pre-season supplemental selection period of the mid-season rookie draft.
Former North Melbourne big man Majak Daw is already among those training with the club, vying for a spot on the Dees’ list.
