Salesi Foketi has quickly earned a reputation for making an impact at Roosters training and in matches.
The Auckland-raised second-rower is only 19, but his teammates already include Lindsay Collins and Victor Radley among those he has overwhelmed.
His growing list of victims also extends to players lining up against him, despite his youthful appearance and limited experience.
Collins, who has spent a decade in the NRL, admitted the teenager has caught him out more than once.
"He's gotten stuck into me at training a couple of times," conceded Collins with a smile.
Radley, known as "Victor the inflictor", is another Roosters teammate to have felt Foketi's physical challenge.