Bradford youngster Danny Addy has been ruled out for two months with a fractured thumb.
Addy, 20, suffered the injury in the win over Harlequins at the weekend, having been a late addition to the Bulls squad following the injury to Heath L’Estrange.
Bulls Football Manager Stuart Duffy said: “It’s very unfortunate that Danny has suffered this setback. He has been playing well this season and his injury is a further blow to the squad. However we will have to cope without him for the next eight weeks and we are lucky that we have other players that can cover his positions.”