St George Illawarra coach Paul McGregor has finalised his 17 for the Dragons' Round 20 clash against the Manly Sea Eagles at WIN Stadium, Wollongong.

Matt Dufty will make his NRL debut at fullback with Jason Nightingale and Kurt Mann shifting back to the wing and the bench respectively from the squad named on Saturday afternoon.

Russell Packer (hip) will start from the bench for his 150th NRL game while Blake Lawrie and Taane Milne drop out altogether. 

NRL Squad for Round 20 v Sea Eagles:

18. Matt Dufty
2. Nene Macdonald
3. Euan Aitken
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
17. Kurt Mann
20. Russell Packer