Vatuvei, together with Ben Matulino, Bodene Thompson, and young front-rowers Sam Lisone and Albert Vete, and Konrad Hurrell, were last week dropped to reserve grade and later stood down from being eligible for test selection, following a late night out after returning home following their embarrassing 42-0 Anzac Day defeat to Melbourne Storm.
Vatuvei, Matulino, Thompson, Lisone, and Vete admitted to the club last Thursday that they mixed prescription drugs and energy drinks, while Hurrell insisted he had not indulged and had only accompanied the players and acted as the group's driver.
It is unclear at this stage whether the group will be granted a return to first grade for the Warriors next match against Penrith in Christchurch on May 14.