Stats over the last 6 encounters
St Helens bring in centre Matty Fleming and second rower Dominique Peyroux for Ryan Morgan and Louie McCarthy-Scarsbrook, who were injured in the defeat at Wigan Warriors. Winger Regan Grace keeps his place after his impressive debut on Good Friday with Jonny Lomax still struggling with a dead leg while caretaker coaches Jamahl Lolesi and Sean Long have called up teenage full-back Ricky Bailey.
Castleford Tigers have skipper Michael Shenton returning from a back injury, so Greg Minikin reverts to the wing in place of Joel Monaghan, while coach Daryl Powell has the option of bringing in forwards Nathan Massey and Matt Cook after they sat out the win over Wakefield Trinity.
For information on tickets for this game, click here.