Panthers outside back George Jennings will spend some time on the sideline after suffering a shoulder injury in last week's trial win against the Bulldogs.
The 22-year-old has been diagnosed with an AC joint injury which will put him out of action for up to four weeks.
Panthers centre Dean Whare will join Jennings in the rehab group after suffering a mild calf strain against the Dogs. The Kiwi international will sit out this weekend's trial game against Parramatta in the hope of being fit to take the field in Round 1.
Meanwhile hooker Sione Katoa, who copped a grade two MCL injury at the Auckland Nines, is continuing his rehab and targeting a return to NRL action in Round 3.