With Keegan Hipgrave suspended and Kevin Proctor (fractured eye-socket) injured, the Titans will field an ex-Penrith duo in the back row with Peachey lining up alongside Bryce Cartwright.
The versatile Peachey has played as a second-rower seven times in his NRL career, with the last appearance being for the Panthers against Newcastle in 2017.
Coach Garth Brennan doesn't know if Peachey will play the whole 80 minutes in that position but has backed the 27-year-old to deliver.
"Tyrone tells us quite regularly that he was the under-20s backrower of the year in NYC a few years ago," Brennan said.
"He has played a fair bit of back row in the past anyway, and look, Tyrone's a footballer you can put him anywhere and he's going to do the job."
Discussions over Peachey's future are being handled by the club's head of performance and culture Mal Meninga and the player's management.
Brennan is keeping himself away from those talks and as far as he knows, Peachey will be staying at Robina.
"Tyrone and I are just focusing on the footy side of things and we'll leave the rest of the stuff for Mal and his management to deal with behind the scenes," he said.
"He's a Titan at the moment and that's what we're focusing on."