Crusaders have suspended seven players for breaking the club's rules on drinking. Jason Chan, Gil Dudson, Richard Moore, Peter Lupton, Jarrod Sammut, Jordan Tansey and Lloyd White are all out of the squad to play Hull KR tomorrow.
"We will not be going into details of what happened, but the club's code of discipline was broken," said Crusaders' chief executive, Rod Findlay.
The suspensions have forced Crusaders to call up Aled James, Joe Burke and Dalton Grant from their feeder club, the South Wales Scorpions. Captain Clinton Schifcofske is fit to return after injury.
The club has signed 35-year-old winger Keith Senior who was released by Leeds.
Steve Menzies, the oldest player in Super League at 37, has signed on for another year with the Catalan Dragons, while Hull KR scrum-half, Michael Dobson, has taken up the option of a further year.