Round 20 NYC Dragons vs Sea Eagles at Win Stadium,Wollongong . Picture : Gregg Porteous

St George Illawarra Dragons Under-20s coach Wayne Collins has trimmed his NYC squad to 20 ahead of Saturday afternoon's preliminary final against the Manly-Warringah Sea Eagles at Allianz Stadium.

The Under-20s will kick-off at 2:30pm with the NRL preliminary final between the Sydney Roosters and North Queensland Cowboys scheduled for 7:40pm.

Jack Cross, Dane Francis and Max Bailey are the unlucky trio to miss out for the young Dragons.

NYC Squad for Finals Week Three v Penrith Panthers

1. Steven Marsters
2. Matheson Johns
3. Reuben Garrick
4. Jackson Ford
5. Jason Gillard
6. Joe Lovodua
7. Tristan Sailor
8. Stuart Mason (c)
9. Reece Robson
10. Josh Dowel
11. Trent Peoples
12. Jayden Morgan
13. Brayden Gallagher
Interchange:
14. TJ Uele
15. Matt Shepherd
16. Jackson Willis
17. Hayden Lomax
18. Tom Angel
20. Bailey Dickinson
21. Dylan Morris