Mark Percival is back in the Saints 21 man squad ahead of Saturday's blockbuster Coral Challenge Cup quarter final against Warrington at the AJ Bell Stadium (2:30pm) live on BBC1.
Percival has not featured since picking up a muscle injury in the win over Castleford back on 16th August, but returned to training last week and will continue to build up his fitness this week ahead of Saturday’s clash with Warrington (2:30pm) live on BBC1 with Woolf admitting he will ensure the centre is 100% fit before he considers playing him.
Matty Costello is the one to make way for Percival whilst the only other change to the 21 man squad following the win over Hull KR last week sees young half back Lewis Dodd return following his isolation, as Joe Batchelor drops out.
Tommy Makinson serves the fourth of his five match ban.

SAINTS 21 MAN SQUAD
- Lachlan Coote, 3. Kevin Naiqama, 4, Mark Percival, 5. Regan Grace, 6. Jonny Lomax, 7. Theo Fages, 8. Alex Walmsley, 9. James Roby, 11. Zeb Taia, 12, Dom Peyroux, 13. LMS, 14. Morgan Knowles, 15. Matty Lees, 16. Kyle Amor, 17. Jack Ashworth, 19. Aaron Smith, 20. James Bentley, 22. Jack Welsby, 26, Josh Simm, 27, Lewis Dodd, 32. James Graham.
WARRINGTON 21 MAN SQUAD
Stefan Ratchford |
Anthony Gelling |
Toby King |
Josh Charnley |
Blake Austin |
Chris Hill |
Daryl Clark |
Mike Cooper |
Ben Currie |
Jack Hughes |
Ben Murdoch-Masila |
Jason Clark |
Joseph Philbin |
Leilani Latu |
Jake Mamo |
Matt Davis |
Danny Walker |
Dec Patton |
Keanan Brand |
Matty Ashton |
Ellis Robson |