Hooker Nathaniel Roache has been signed by the New Zealand Warriors for a further two years.
The 21-year-old will now remain at Mount Smart Stadium until the end of the 2020 NRL season.
Named the club's 2016 NRL rookie of the year, the Mount Albert Lions junior has made a total of 20 first-grade appearances since his debut in the opening round last year.
"Nate is a big part of our plans," said Warriors head coach Stephen Kearney.
"He's an impressive young man with a terrific attitude and work ethic."