The Warriors have confirmed contract extensions for NRL rookies Tuimoala Lolohea, Solomone Kata and Sam Lisone as well as promising prop Toafofoa Sipley.
The trio have played in all 11 NRL matches so far this year
Lolohea and Kata (Mate Ma'a Tonga) and Lisone (Toa Samoa) also made their international debuts in last month's Pacific Test in Robina.
Junior Warriors captain Sipley played his first New South Wales Cup match against the Newcastle Knights on Sunday following a string of impressive performances in the NYC and for the Junior Kiwis.
"All four players are outstanding examples of how our pathways are working," Warriors coach Andrew McFadden said.
"They've all been developed through the NYC and have also had experience in our New South Wales Cup side.
"I can't say enough about the way Tui, Sol and Sam have progressed in the NRL this year. They've absolutely grabbed their opportunity to not only claim spots but to establish themselves as first-choice NRL players."