South Sydney are chasing another appearance in the NSW Women's Premiership Grand Final, eight years after reaching the decider in 2018.
The Rabbitohs' senior women's side will meet Mounties in Saturday's preliminary final, scheduled for 19 September at 10:45am at St George Venues Jubilee Stadium.
A victory would secure a place in this year's Grand Final.
South Sydney finished second on the ladder after 11 rounds and began the finals with a victory over the Panthers.
They then lost to the Newcastle Knights in last weekend's major semi-final, leaving them one win from the decider.
The Rabbitohs will aim to match their 2018 progress during the 2026 campaign.