Kayliss Fatialofa, Marata Niukore and Morgan Gannon have moved on from the Warriors.
The club has signed South Sydney forward Thomas Fletcher on a three-year deal starting in 2027.
"Thomas is a quality back rower who now has the chance to build his career with us," the Warriors' general manager of recruitment Andrew McFadden said.
"We've had some back rowers who have moved on in Kayliss Fatialofa, Marata Niukore and Morgan Gannon. Thomas boosts the resources there and has the opportunity to create a future here in the same way Jackson Ford has."
Fletcher has played seven NRL matches since his 2025 debut, alongside 38 NSW Cup appearances.
An edge forward who can also play in the middle, he could eventually replace Kurt Capewell, whose career is likely to end this year.
Fletcher's arrival could also lead the Warriors to hold off spending elsewhere in their forward pack, despite links to Jordan Riki.