Luke Keary is set to retire from the NRL at the end of the season, after opting out of the final year of his Sydney Roosters' deal.
AAP understands Keary will tell his Roosters teammates of his decision on Monday, before officially announcing his impending exit.
The Roosters five-eighth will play out the rest of 2024. His decision is not linked to the several concussions he has suffered throughout his career.
Keary's choice to walk away comes just months after he signed a one-year extension to play on into 2025.
His exit is likely to leave Sandon Smith alongside Sam Walker in the Roosters halves next year.
A rugby union prodigy as a teen, Keary debuted at South Sydney in 2013 and won a premiership as five-eighth in his second season.
But after a falling out with the Rabbitohs' co-owner Russell Crowe, Keary headed to the Roosters in 2017 - winning back-to-back titles in 2018 and 2019.
His performance in the 2018 grand final - in which he claimed the Clive Churchill Medal - was arguably the best of his career.
Keary played a sole State of Origin match for NSW in 2020, to go with two Tests for Australia in 2018.