With PNG ranked seventh and fifth for the men and women respectively at the 2011 Games, Nauru has not participated since 2003-2011.
The women team, known as Valivas, will head on to the court at 5pm while the men will play their game at 7pm.
PNG Valivas will be banking on key players Betty Angula, Nesta Sape and captain Marca Muri who have been outstanding in the previous two matches.
Nauru has Shania Ika, Kerina Adam and Jeiziannie Deraudag to power them on.
