James Roby is set to return for St Helens on Friday, while Castleford have made four changes.
St Helens coach Justin Holbrook has made three changes to his side that beat Warrington Wolves last week. Roby, Matty Costello and Jake Spedding replace Jonny Lomax, Jon Wilkin and Luke Thompson.
Daryl Powell has made four changes to his Castleford Tigers outfit that beat rivals Wakefield Trinity. Joe Wardle, Quentin Laulu-Togaga’e, Jamie Ellis and Lewis Peachey come in for Greg Eden, Mike McMeeken, Junior Moors and Michael Shenton.
The Super 8s clash takes place at the Totally Wicked Stadium on Friday, 7:45pm kick-off.
Saints 19-man squad: Tommy Makinson, Ryan Morgan, Mark Percival, Theo Fages, James Roby, Kyle Amor, Zeb Taia, Louie McCarthy-Scarsbrook, Luke Douglas, Morgan Knowles, Dom Peyroux, Danny Richardson, Regan Grace, Matty Lees, Jack Ashworth, Jake Spedding, Ben Barba, James Bentley, Matty Costello.
Tigers 19-man squad: James Clare, Mitch Clark, Jamie Ellis, Luke Gale, Quentin Laulu-Togaga’e, Will Maher, Nathan Massey, Peter Mata’utia, Paul McShane, Grant Millington, Adam Milner, Greg Minikin, Lewis Peachey, Ben Roberts, Jesse Sene-Lefao, Jake Trueman, Joe Wardle, Liam Watts, Jake Webster.
Who will come out on top? Let us know your thoughts in the comments below.