St George Illawarra coach Paul McGregor has trimmed the Dragons' squad to 19 ahead of the Round 21 clash against the Newcastle Knights at McDonald Jones Stadium, Newcastle on Saturday afternoon.

Blake Lawrie and Luciano Leilua are the two players to have missed the cut, as Taane Milne and Jake Marketo remain as the Dragons' reserves.

NRL Squad for Round 21 v Newcastle Knights:

1. Matt Dufty
2. Nene Macdonald
3. Josh Dugan
4. Tim Lafai
5. Jason Nightingale
6. Gareth Widdop (c)
7. Josh McCrone
8. Leeson Ah Mau
9. Cameron McInnes
10. Paul Vaughan
11. Tyson Frizell
12. Joel Thompson
13. Jack de Belin
Interchange: 
14. Tariq Sims
15. Jacob Host
16. Russell Packer
17. Kurt Mann
19. Taane Milne
20. Jake Marketo

NYC Squad for Round 21 v Newcastle Knights:

1. Steven Marsters
2. Dane Francis
3. Reuben Garrick
17. Hayden Lomax
5. Jason Gillard
6. Tristan Sailor
7. Jackson Willis
8. Stuart Mason (c)
9. Joe Lovodua 
10. Josh Dowel 
11. Trent Peoples 
12. Jackson Ford
13. Brayden Gallagher
Interchange:
14. TJ Uele
15. Tom Angel
16. Elijah Hunt
18. Bailey Dickinson
19. Jack Cross
20. Max Bailey
21. Dylan Morris