Dragons fullback Josh Dugan has been named in the custodian position after overcoming a shoulder injury which has sidelined him in recent weeks.
Consequently, winger Jason Nightingale reverts to the flanks in lieu of Kurt Mann who featured for the Illawarra Cutters in the NSW Cup.
Dragons second-rower Tyson Frizell has also been named in the lock-forward role and replaces Mike Cooper who has been omitted due to a neck injury.
St George Illawarra Dragons
19 Josh Dugan
2 Kalifa Faifai Loa
3 Euan Aitken
4 Tim Lafai
1 Jason Nightingale
6 Gareth Widdop (c)
7 Benji Marshall
8 Leeson Ah Mau
9 Mitch Rein
10 Russell Packer
11 Jacob Host
12 Joel Thompson
21 Tyson Frizell
Interchange
14 Jack de Belin
15 Will Matthews
16 Dunamis Lui
17 Jake Marketo