Payne Haas, David Fifita and Jai Arrow are among the Keebra Park graduates in South Sydney's squad, CEO Blake Solly said.
The Rabbitohs have extended their elite pathways partnership with Keebra Park State High School for two years, keeping the affiliation in place until the end of 2028.
Established at the end of 2023, the agreement retains the Rabbitohs logo on Academy apparel and provides regular visits from pathways staff, access to Elite Pathways and Player Development resources, and professional development for Academy coaches and staff.
"Keebra Park State High School has a proud Rugby League tradition and a reputation for developing quality young players and people," said Rabbitohs CEO Blake Solly.
"We are fortunate enough to have a number of Keebra graduates in the squad - with Payne Haas, David Fifita and Jai Arrow all having studied there. Hopefully they will be joined by more players from Keebra Park State High School in future years."
Keebra Park Rugby League Academy Head of Department Peter Norman welcomed the extension, saying: "Both organisations share a rich history of success in Rugby League and have strongly aligned values."