Toby Sexton will become Titan #168, with the 20-year-old set to make his NRL debut against the Dragons on Sunday.
The talented young half and former Australian Schoolboys representative will line up at halfback, with co-captain Jamal Fogarty to miss the game through injury.
Greg Marzhew returns on the wing after recovering from an elbow injury and will replace Phillip Sami (ankle) who will miss the game.
Mitch Rein also returns to play against his old club, with the hooker to replace Erin Clark who will miss the game with an elbow injury.
Esan Marsters, Sam McIntyre, Tanah Boyd and Jayden Campbell make up the extended bench.
The game will be played at the Titans home ground, Cbus Super Stadium with the Dragons the "home" team for the round 19 match, although the Titans will remain in their usual sheds and bench for the match.
St George Illawarra Dragons v Gold Coast Titans
Cbus Super Stadium, Gold Coast 1:50pm (Sunday 25th July)
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