Warrington's Ben Westwood could miss Saturday's Challenge Cup semi-final against Hull KR because of suspension.
Westwood has been accused of a shoulder charge on Luke Gale during Sunday's 44-6 Super League win at Castleford.
Tigers half-back Gale was later withdrawn and taken to hospital for overnight observation.
Back-rower Westwood, 34, has already submitted an Early Guilty Plea this season and therefore could be banned for up to two games on Tuesday.
Meanwhile, Catalans forward Ben Garcia has been charged with a Grade A dangerous throw during Sunday's 36-22 defeat by Leeds.
Garcia, who made the challenge on Rhinos prop Kylie Leuluai, has until 11:00 BST on Tuesday to enter an EGP.