Boas replaces Lachlan Lam who has been released to begin pre-season training with 2018 NRL premiers Sydney Roosters.
Stanford Talita, who was added onto the squad with fellow PNG U23 Residents Edwin Ipape and Woods Kawage, was forced to withdraw to focus on his studies. Talita has been replaced by Nima.
The arrivals of Tom Butterfield today (Monday) and Nene Macdonald tomorrow (Tuesday) will complete the squad for game one against England Knights in Lae on Saturday, 27 October. The team for game one will be announced in Lae on Thursday.