Raiders back Michael Oldfield will miss the opening round of the season, after picking up a groin injury at training last week.
Oldfield will be assessed weekly, with a hope of returning within the next 2-4 weeks.
Jordan Rapana continues his rehabilitation and has started to do some light training with the main NRL squad. He is still scheduled for a return mid-season.
Joey Leilua (hamstring) and John Bateman (sidestrain) are back to full fitness and will play in the Raiders season opener on Sunday against the Titans.