St George Illawarra are set to be without prop Paul Vaughan for up to a month because of a calf injury.
The in-form forward hobbled from the field in the third minute of the Dragons' win over Newcastle on Sunday and is set to miss three to four weeks, according to club head of athletic performance Nathan Pickworth.
Vaughan was mentioned as a possible bolter for NSW this year and has found a new lease on life after exiting Canberra, running for an average 130 metres per game.
Vaughan's injury is set to stretch the Dragons' forward stocks over the next few weeks.
Paul McGregor has however dodged a bullet, with back-rower Tyson Frizell avoiding serious injury after twisting his leg in the same game.
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Pickworth said the NSW representative suffered a medial ligament strain in his ankle and is hopeful of taking on Gold Coast on Friday night.
"Tyson had a nasty ankle injury towards the end of the game against the Knights on the weekend. He has pulled up reasonably well," Pickworth said.
"The MRI has revealed a medial ligament sprain in his ankle. It's a bit swollen, a bit puffy, we're going to see how he progresses through the week. Hopefully he should be right for the Titans."
Meanwhile, centre Euan Aitken is set to return from a hamstring injury against the Titans.
