Hull FC forward Jack Ashworth could face a ban of six matches or more after being charged with striking in their derby defeat by Hull KR.
The 29-year-old appeared to hit Robins' playmaker Mikey Lewis in the head with his forearm in the closing minutes.
Catalans Dragons' Franck Maria has also been charged with a Grade E offence of head contact in their win over Salford and, like Ashworth, will face a tribunal later this week.
Salford's Loghan Lewis and Warrington's Luke Yates will both miss the remainder of the season after being given three and two-match bans respectively.
Three other Hull FC players have been handed suspensions after Sunday's fractious derby clash.
Jordan Rapana has been given a two-game ban for two separate incidents, while Amir Bourough and Yusuf Aydin have both been given one-match suspensions.