Catalans Dragons pair Joel Tomkins and Micky McIlorum could both be facing a long spell on the sidelines, after being referred to the tribunal.
Both were charged for Other Contrary Behaviour at Grade F. That means they will face at least an eight game ban if found guilty.
Tomkins was referred following an incident involving indecent contact with Richie Myler. While McIlorum went in for trying to pick Brad Dwyer up after a high tackle.
McIlorum will serve at least a one-match ban after an additonal charge for the high tackle.