The 29-test Kiwi made his comeback from a knee injury in the Warriors' reserve grade team on Sunday, scoring a try in the side's 14-20 loss to the Wyong Roos.
Vatuvei is a late call up for Tonga, replacing former Warrior Konrad Hurrell, for the match at Campbelltown Stadium in Leaumeah, New South Wales.
Vatuvei, who was born in Auckland, would be able to switch back to New Zealand for the World Cup later this year, but perhaps has a better chance of playing at the tournament in a red jersey, rather than a black and white one.