Hunslet captain Richard Chapman could miss out on a farewell appearance for the Hawks after he was handed a one match ban.
Chapman and team-mate Charlie Wabo were both suspended for one match and fined £50 after being found guilty for their respective offences in the Hawks match against Workington.
The Hawks could gain automatic promotion if they win the Championship 1 title, and play their final regular season match on Sunday. Should they finish second, they will go in to the play-offs.
Workington forward Jarred Stack was also banned for one match and fined £50 at the meeting of the RFL disciplinary committee.