SAINTS have named their 19-man squad for Friday's table topping clash at Warrington.
Either Morgan Knowles or Joseph Paulo will cover the second row spot vacated by Zeb Taia, with the other taking the 13 role.
Mark Percival is named, but coach Justin Holbrook will not risk him if there is an issue, and Matty Costello is on standby to cover centre.
Warrington have named England RU convert Luther Burrell in their squad.
Saints: 1. Jonny Lomax, 2. Tommy Makinson, 3. Kevin Naiqama, 4. Mark Percival, 5. Regan Grace, 6. Theo Fages, 8. Alex Walmsley, 10. Luke Thompson, 12. Joseph Paulo, 13. Louie McCarthy-Scarsbrook 15. Morgan Knowles, 16. Kyle Amor, 17. Dom Peyroux, 19. Matty Lees, 20. Jack Ashworth, 21. Aaron Smith, 22. James Bentley, 23. Lachlan Coote, 24. Matty Costello.
Warrington 19-man squad: Sitaleki Akauola, Blake Austin, Luther Burrell, Josh Charnley, Daryl Clark, Jason Clark, Mike Cooper, Ben Currie, Matt Davis, Bryson Goodwin, Chris Hill, Jack Hughes, Toby King, Tom Lineham, Jake Mamo, Declan Patton, Joe Philbin, Lama Tasi, Danny Walker.
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