Mick Potter has named three rookies in his 19-man squad to face Doncaster in the Challenge Cup fourth round on Sunday.
The Bulls coach has seen his squad decimated by injury and half-back Callum Windley, winger Jay Rossi and second-rower Matt Bailey could be handed opportunities.
All Under-20s regulars have impressed for Stu Barrow’s side this season and at least one of them will make his debut against Doncaster.
Heath L'Estrange (suspended), Jarrod Sammut (knee) and Brett Kearney (ankle) all miss out but John Bateman returns after a two-match ban.
Bulls squad: Addy, Ainscough, Bailey, Bateman, Burgess, Diskin, Elima, Hargreaves, Jeffries, Kopczak, Langley, Lulia, Manuokafoa, Olbison, Platt, Purtell, Rossi, Whitehead, Windley.