The Knights have signed North Queensland Cowboys centre Enari Tuala on a one-year deal.
Tuala made his NRL debut in 2017 and has totalled 18 firs-grade appearances.
“Enari is a highly accomplished youngster,” Knights recruitment manager Alex McKinnon told the club website.
“He debuted young and having finished with the Cowboys, moves to Newcastle for an opportunity to restart his first-grade career.
“The backline is an area we are looking to bolster and are excited to have Enari join our top 30 for the 2020 season.”
The 21-year old enjoyed an impressive junior career, including representing Queensland at the under 16s and 18s Origin, the Kangaroos in 2017 and the Prime Minister's XIII in 2018.
He was excited about the opportunity at Newcastle and playing under Adam O'Brien.
"I'm excited to join the club," Tuala said.
"It's a fresh start and great opportunity for me. Everyone has been welcoming and I'm looking forward to learning from Adam O'Brien."