If found guilty, McKenna is likely facing at least a three-game ban based on the AFL's table of penalties.
McKenna was chased down and tackled by Dickson during second quarter of the Round 3 match at Docklands on Sunday.
Christian classified the incident as serious misconduct, a charge that's sent directly to the tribunal with no opportunity for an early plea.
The AFL confirmed on Monday that McKenna has been referred directly to the AFL tribunal for serious misconduct against Tory Dickson of the Western Bulldogs after the pair clashed during the contest at the Etihad Stadium in Melbourne on Sunday.
The 22-year-old recently revealed that his plan is to return to Tyrone before he hangs up to his boots to help the country win the All Ireland, with McKenna telling World Footy News "to win a premiership here and then one at home is the dream".
McKenna's legal representative Adrian Anderson argued that a two-match suspension would be an appropriate course of action, and referred to a previous case in which a player was found guilty of an alleged bite on an opponent's forearm.
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