CURTIS Sironen returns to Saints' pack for Thursday night's game with Leeds Rhinos.

Morgan Knowles, who missed England's game last week after needing extra treatment on a niggling injury, is included in the 21-man squad.

Saints are without the injured Mark Percival (knee) and Louie McCarthy-Scarsbrook (cheekbone), plus the suspended Sione Mata'utia and James Bell.

Former Saints second row James Bentley is set for his first game at the TWS since his depart.ure

Saints: 1. Jack Welsby, 2. Tommy Makinson, 3. Will Hopoate, 5. Regan Grace, 6. Jonny Lomax, 8. Alex Walmsley, 9. James Roby, 10. Matty Lees, 12. Joe Batchelor, 13, Morgan Knowles, 14. Joey Lussick, 16. Curtis Sironen, 17. Agnatius Paasi, 19. Jake Wingfield, 21. Josh Simm, 22. Ben Davies, 23. Konrad Hurrell, 24. Dan Norman, 26. Sam Royle, 27. Jon Bennison, 29. Dan Hill.

Leeds Rhinos 21-man: 2 David Fusitu’a, 3 Harry Newman, 4 Liam Sutcliffe, 5 Ash Handley, 6 Blake Austin, 7 Aidan Sezer, 8 Mikolaj Oledzki, 9 Kruise Leeming, 10 Matt Prior, 11 James Bentley, 12 Rhyse Martin, 13 Zane Tetevano, 14 Brad Dwyer, 16 Richie Myler, 17 Cameron Smith, 19 Bodene Thompson, 22 Sam Walters, 24 Jarrod O’Connor, 25 James Donaldson, 28 Max Simpson, 33 Zak Hardaker.