Panthers forward Isaah Yeo will be sidelined for at least four weeks after suffering a dislocated shoulder in last Saturday's defeat to Canberra Raiders.
The 24-year-old will undertake a rehabilitation program on his injured left shoulder for the next month.
Yeo's replacement in the Panthers side to face Wests Tigers will be confirmed when coach Ivan Cleary names his squad on Tuesday afternoon.
Earlier on Tuesday, it was revealed Viliame Kikau was an outside chance of taking on Wests Tigers following positive scan results on his injured ankle.
