St George Illawarra coach Paul McGregor has named his mandatory 21-man squad ahead of the Dragons' Round 19 clash against the North Queensland Cowboys at 1300Smiles Stadium, Townsville.

Nene Macdonald (foot) has been named to play the Cowboys, although the severity of his injury is yet to be fully determined. Patrick Herbert and Jordan Pereira's berths in the reserves list could lead to potential NRL debuts.

The team is unchanged otherwise, as the Dragons look to arrest a two-game losing run up north.

NRL squad for Round 19 v North Queensland:

1. Matt Dufty – sponsored by Illawarra Mercury/St George & Sutherland Shire Leader
2. Nene Macdonald – sponsored by Relativity in the Loop
3. Euan Aitken – sponsored by University of Wollongong
4. Tim Lafai – sponsored by Kingsgrove Sports Centre
5. Jason Nightingale– sponsored by SMAI
6. Gareth Widdop (c) – sponsored by Dynamic Projects
7. Ben Hunt– sponsored by Paul's Customs and Forwarding Solutions
8. James Graham – sponsored by EFEX                                                  
9. Cameron McInnes – sponsored by Floormania
10. Paul Vaughan – sponsored by My Muscle Chef
11. Tyson Frizell – sponsored by Val Morgan
12. Tariq Sims – sponsored by Stonemasons & Landscapers (since 1970)
13. Jack de Belin – sponsored by Wollongong Jetski

Interchange:
14. Jeremy Latimore – sponsored by Addbuild Additions
15. Kurt Mann – sponsored by Wollongong Diagnostics
16. Leeson Ah Mau – sponsored by Westfund
17. Luciano Leilua – sponsored by Domus Lighting
18. Patrick Herbert
19. Blake Lawrie
20. Jai Field
21. Jordan Pereira