The Jillaroos have lost the services of Premiership-winning Knights pair Millie Boyle and Tamika Upton, following their withdrawal from the World Cup squad.
Boyle and Upton informed Australian coach Brad Donald of their decisions on Tuesday, with replacement players to be announced later in the week.
Upton has withdrawn due to an ongoing calf injury, which she part of the NRL season through and carried into the finals series, while Boyle has chosen to prioritise her work in Australia.
Boyle, who this year established her business working with people living with disabilities, said via her Instagram that she was grateful to have been selected for her country, but couldn't commit to being away from Australia for such a long period.
"I am extremely grateful to have been selected [in] such an amazing Jillaroos squad," Boyle said.
"Unfortunately, due to my work commitments with [Trainer Group], it isn't
possible for me to be away for the period of time required.
Boyle brings the heat
"I am obviously upset I won't be able to experience the World Cup, but will be cheering on the girls every step of the way!"
Knights NRLW coach Ronald Griffiths said the club is fully supportive of the players’ decisions.
“Millie is all about team first actions and putting her business and her participants needs ahead of her playing ambitions is the very epitome of team first,” he said.
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“Tamika missed two games at the end of the longest year of her career to date and having managed the injury through the semi and Grand Final she needs to prioritise her recovery.
“No doubt, sitting out a World Cup is one of the hardest decisions a player will make in their career."
The Jillaroos kick off their campaign on November 2 against the Cook Islands.