Head Coach: Sean Long, Jamahl Lolesi & Derek Traynor
Squad: Kyle Amor, Ricky Bailey, Luke Douglas, Theo Fages, Matty Fleming, Regan Grace, Morgan Knowles, Tommy Lee, Tommy Makinson, Mark Percival, Dominique Peyroux, Greg Richards, Matty Smith, Adam Swift, Zeb Taia, Luke Thompson, Adam Walker, Alex Walmsley, Jon Wilkin
Unavailable: James Roby (Knee), Louie McCarthy-Scarsbrook, Ryan Morgan, Jonny Lomax, Danny Richardson, Calvin Wellington, Jack Ashworth, Jack Owens
Head Coach: Daryl Powell
Squad: Rangi Chase, Matt Cook, Greg Eden, Luke Gale, Zak Hardaker, Oliver Holmes, Andy Lynch, Nathan Massey, Mike McMeeken, Paul McShane, Grant Millington, Adam Milner, Greg Minikin, Junior Moors, Ben Roberts, Jesse Sene-Lefao, Michael Shenton, Gadwin Springer, Jake Webster
Unavailable: Larne Patrick (Wrist), Alex Foster (Pectoral), Joel Monaghan, Luke Million, Will Maher
Analysis - what to expect
The big question coming into this game is whether St Helens can halt this irresistible Cas attack and that will be a major challenge after playing most of the game against Wigan with just 12 men. Castleford on the other hand were able to ease past Wakefield and with the extra energy, they should be able to compound Saints' current misery.