It is understood that Penrith are keen to add some “mongrel” and leadership to their side and will ask the Panthers grant the 30-year old a release.
Waerea-Hargreaves still has a year to run on his current deal, but Sydney could look to offload him earlier to bring in some younger talent.
The New Zealand international was hit with a two-match ban for a shot on Newcastle’s Kalyn Ponga last week.
And it is that sort of aggression that Panthers officials believe the side is lacking and has cost them games this season.
Waerea-Hargreaves played a key role in the Roosters’ premiership triumph last season.