St George Illawarra winger Nene Macdonald suffered a foot sprain midway through the first half of the Dragons' loss to the Wests Tigers on Sunday afternoon.
The severity of the injury is yet to be determined.
Macdonald remains in a moonboot, with the best course of action to be determined as the injury settles over the coming days.
The Dragons will provide further updates on Macdonald's injury as it comes to hand.