Canberra skipper Alan Tongue has been ruled out for two to six weeks with a knee injury.
The Raiders lock will wait until the injury settles before a decision is made as to whether or not he requires surgery to repair damage to his knee cartilage. Raiders prop Michael Weyman will also miss Sunday's clash with St George Illawarra with a knee injury, but is hopeful of returning the following week.
Centre Colin Best returns to the line-up to take on his former club.
Gold Coast centre Mat Rogers has been ruled out for up to six weeks with a patella fracture.
Rogers suffered the knee injury in the Titans 22-6 loss to New Zealand Warriors last Saturday night and will miss Friday's local derby clash with Brisbane. Scans have confirmed the 31-year-old former Wallaby rugby union international had indeed suffered a small patella fracture, the injury forcing the club's leading tryscorer from the field during the second half.
Luke O'Dwyer has been named in the centres as Rogers' replacement.