UPDATE @ 12.30PM - Josh Mansour joins Reagan Campbell-Gillard in the Kangaroos squad! 

Panthers prop Reagan Campbell-Gillard has been added to the Australian squad to contest the 2017 Rugby League World Cup.

Campbell-Gillard, who on Wednesday night was awarded the 2017 Merv Cartwright Medal, received the surprise news from Kangaroos coach Mal Meninga on Thursday morning.

His call-up comes following the decision of Andrew Fifita to withdraw from the Kangaroos squad in order to play for Tonga.

Sione Katoa named in star-studded Tonga outfit 

"Andrew called me and said he was passionate about playing for Tonga and I respect and support that decision," Meninga said.

"It is obviously a significant boost for Tonga as well as the World Cup – and international Rugby League in general.

"At the same time it is also a great opportunity for someone like Reagan, who has been outstanding for the Panthers.

"I'm extremely excited about seeing Reagan in a Kangaroos jersey."

The updated squad, listed alphabetically, is as follows:
  

Player

NRL Club

Junior Club

Darius Boyd

Brisbane Broncos

Mudgeeraba Redbacks

Reagan Campbell-Gillard

Penrith Panthers

Windsor Wolves

Will Chambers

Melbourne Storm

Nhulunbuy, NT

Boyd Cordner (vc)

Sydney Roosters

Old Bar Pirates

Cooper Cronk

Melbourne Storm

Souths Acacia

Josh Dugan

St George Illawarra Dragons

South Tuggeranong Knights/Valley Dragons

Tyson Frizell

St George Illawarra Dragons

Corrimal Cougars

Dane Gagai

Newcastle Knights

Souths Sharks

Matt Gillett

Brisbane Broncos

Bribie Island Warrigals

Wade Graham

Cronulla-Sutherland Sharks

Blacktown City

Valentine Holmes

Cronulla-Sutherland Sharks

Western Lions/Townsville

Ben Hunt

Brisbane Broncos

Blackwater Crushers

Felise Kaufusi

Melbourne Storm

Bundaberg Brothers

David Klemmer

Canterbury-Bankstown Bulldogs

All Saints Toongabbie

Josh McGuire

Brisbane Broncos

Aspley

James Maloney

Cronulla-Sutherland Sharks

St Edwards, Gosford

Jordan McLean

Melbourne Storm

Young Cherrypickers

Michael Morgan

North Queensland Cowboys

Townsville Brothers

Cameron Munster

Melbourne Storm

Norths Knights

Billy Slater

Melbourne Storm

Innisfail

Cameron Smith (c)

Melbourne Storm

Logan Brothers

Jake Trbojevic

Manly Warringah Sea Eagles

Mona Vale Raiders

Tom Trbojevic

Manly Warringah Sea Eagles

Mona Vale Raiders

Aaron Woods

Wests Tigers

Leichhardt Juniors