Marum revealed that fullback Stargroth Amean and utility Noel Zeming are both under injury clouds.
He said Amean struggled to train during the week and is currently being monitored by the physio while Zeming is still carrying an injured arm and fractured wrist.
Marum went on to say if Zeming is ruled out, 18th man Butler Morris will be slotted in to take his place.
Forward Brandy Peter will miss this weekend's game after Marum explained for personal reasons.
This has pushed Enoch Maki into the starting line-up.
