Following the GIO NSW Under 20s Origin team assembly this afternoon, Luke Brooks, Alex Johnston and Isaah Yeo have been withdrawn from the side.
Their places in the team have been taken by Drew Hutchison, Tyrone Phillips and Ryan Matterson.
There has been no decision on an 18th man or captain at this stage.
An updated team list is below.
PLAYER - CLUB
Clinton Gutherson - Manly Warringah Sea Eagles
Jake Mamo - Newcastle Knights
Aaron Gray - South Sydney Rabbitohs
Sione Mata'utia - Newcastle Knights
Tyrone Phillips - Canterbury-Bankstown Bulldogs
Drew Hutchison - St George-Illawarra Dragons
Mitchell Moses - Wests Tigers
Jake Trbojevic - Manly Warringah Sea Eagles
Kaysa Pritchard - Parramatta Eels
Matt Lodge - Melbourne Storm
Adam Elliott - Canterbury-Bankstown Bulldogs
Jakiel Mariner - Sydney Roosters
Jack Bird - St George-Illawarra Dragons
Ryan Matterson - Parramatta Eels
Rhys Kennedy - Melbourne Storm
Pauli Pauli - Parramatta Eels
Dean Britt - Melbourne Storm
Coach: Dean Pay
Manager: Mal Cochrane