Brisbane forwards Ben Hannant and Josh McGuire and Wests Tigers prop Aaron Woods are set to battle for a possible Australian front-row berth when they play for the Prime Minister's XIII against Papua New Guinea this month.
The team for the September 23 clash in Port Moresby was named on Tuesday, with representatives from the six remaining teams in the NRL finals not considered.
Hannant, Woods and McGuire will fight it out for the fourth Kangaroos prop spot in the side for the end of season Test against New Zealand in Townsville on October 13.
David Shillington and Paul Gallen are the incumbent starting props following Australia's 20-12 victory in April's Anzac Test in Auckland.
But with Cowboys enforcer Matt Scott set to return to the starting side, Gallen likely to be shifted to the back-row and Test veteran Petero Civoniceva retired, there remains a position on the bench alongside James Tamou.