North Melbourne defender Jackson Archer has been offered a three-match suspension for the fourth-quarter collision which concussed Western Bulldog Luke Cleary.
The Match Review Officer charged Archer with rough conduct, grading the incident as careless conduct, severe impact and high contact.
North Melbourne will now weigh up whether or not it will challenge the MRO's ruling.
Speaking about the incident after the Roos' 16-point loss, coach Alastair Clarkson said: "I haven't looked at a replay of it, but just an unfortunate collision in the game. I hope the young fella's OK.
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"I didn't know what the free kick was gonna be – was it gonna be for too high or was it gonna be for taking the legs out of the opposition?
"And unfortunately the young fella's been injured but I hope he comes out of it OK."
Cleary has been cleared of any other serious damage.
If the ban stands, Archer will miss games against Melbourne, Adelaide and Sydney.
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