St George Illawarra Dragons winger Brett Morris has suffered a fracture and ligament damage to his shoulder and will be out for an indefinite period of time.

The Kiama Knights junior will now meet with Dragons medical officials to seek additional specialist medical advice before finalising the best treatment and rehabilitation program for the injury.

The extent of the injury was confirmed following the results of a CT scan on Friday.

Morris suffered the shoulder injury while representing the NSW Blues during the State of Origin fixture at Suncorp Stadium, Brisbane on Wednesday.