Fiji, Oct. 9 -- The battle for the NRL's Papua New Guinea expansion side to be called the Chiefs is set to be decided by a judge after New Zealand Rugby filed proceedings in the NZ High Court.

NZR said it was forced into legal action after being unable to "engage constructively" with the Australian Rugby League Commission over the past 12 months to work towards a resolution.

New Zealand Rugby chief executive Steve Lancaster says "we now have a responsibility to protect the Chiefs brand". Getty

The NRL franchise is set to officially unveil the Chiefs' logo and jersey at a launch in PNG later this month, which coincides with a Rugby League World Cup match in Port Moresby on 24 October.

The rugby governing body is seeking both an interim a...