Geelong triple-premiership defender David Wojcinski must face the VFL Tribunal on Tuesday night over a clash which broke the jaw of Melbourne draftee-in-waiting Jack Viney.
Wojcinski has already accepted a one-match ban for a separate striking offence involving Viney.
But it is the high bump, which resulted in 18-year-old Viney needing two plates inserted in his cheekbone, which will potentially attract a bigger additional penalty.
Whatever ban he receives will also apply to the AFL.
Under VFL rules, the league can offer a player an automatic one-match ban for an offence, as they did with the striking charge.
But if they consider an offence to be more serious, they refer it directly to the tribunal, as they have done with the rough conduct charge.
It is completely up to the tribunal's discretion what penalty they hand to Wojcinski, if they find him guilty.
There is no points table to grade offences, as there is with the AFL system.
Wojcinski has played 199 AFL games and was part of his third premiership last year.
He has not played an AFL game so far this season, but was close to a senior comeback, after working his way back from a pre-season foot injury.
Saturday's game for Geelong's VFL side against Casey was the 31-year-old's third VFL game of the season.
Compounding Wojcinski's situation, the Cats' VFL side has two byes in the next three rounds, which could add to the time it takes the veteran to serve any suspension.
However, the tribunal can take the fixture into account in setting a penalty.
Viney is expected to spend about two months sidelined.
The highly-rated youngster, who turned 18 in April, was making his VFL debut.
Viney, son of Demons great Todd Viney, is such a hot prospect the AFL club committed two years ago to drafting him under the father-son rule this November and have contracted him until 2015.
Under the father-son bidding system, they might have to use their first pick in the draft.
They received special permission for him to play in the VFL this season.
Two players face suspensions stemming from the weekend's AFL round.
West Coast's Ashton Hams can accept a two-game ban after being charged with rough conduct against North Melbourne's Andrew Swallow.
The Eagle's prior record prevented him reducing it to one game with an early plea.
Likewise, Adelaide's Shaun McKernan could have escaped with a reprimand for striking Sydney's Alex Johnson, but due to a penalty loading faces a one-game suspension.
Fremantle's Greg Broughton can accept a reprimand for rough conduct, while Carlton's Shaun Hampson and Port Adelaide's Travis Boak face fines for umpire contact.
Hawthorn's Lance Franklin, Essendon's Paddy Ryder and Gold Coast's Campbell Brown were among those cleared after having incidents assessed by the match review panel.