Catalans captain Remy Casty will be out of action for up to four weeks with fractured rib cartilage.
Casty was injured in the Dragons’ victory over Castleford on Easter Monday.
“It’s obviously a bad news for him but also for the team,” Catalans coach Laurent Frayssinous said.
“Since his return, Rémi was improving week in week out and produced some great performances on the last games.
“But I know him and I’m sure he will come back stronger.”