St Kilda youngster Marcus Windhager has been offered a one-game suspension for a high bump on Essendon's Sam Durham.
Windhager will miss the Saints' Gather Round match against Richmond unless the club successfully challenges the rough conduct charge at the tribunal.
The 20-year-old collected Durham high during the second quarter of Essendon's four-point win at Marvel Stadium on Saturday. The match review officer graded the incident as careless, medium impact and high contact.
Durham was concussed in the incident and is subject to 12-day protocols.
The Bombers initially believed Durham had injured his shoulder, but later confirmed concussion.
Windhager's penalty comes a week after star forward Max King was suspended for a bump against Collingwood, crucially ruling him out of taking on the Bombers.
St Kilda also lost Mason Wood (collarbone) and Liam Henry (hamstring) during the match against the Magpies, and their depth is now set to be tested further.
