Warrington-bound England half-back Gareth Widdop suffered a dislocated right shoulder for the third time since August in St George-Illawarra’s win over Brisbane on Thursday.
Widdop, 30, missed the end of the 2018 season and the autumn internationals to undergo surgery on the same shoulder.
Reports Down Under hint that the former Melbourne Storm man may well have played his last game for the Dragons, such is the seriousness of the injury.
Medical staff at the Suncorp Stadium were unable to put his shoulder back into place, forcing Widdop to go to hospital after the dramatic 25-24 victory, though he has since returned to Sydney with his arm in a sling.
He is due to link up with Warrington for the 2020 season on a three-year deal having asked to have his NRL contract cut short.
A Dragons club statement said: “The Dragons are hopeful Gareth Widdop has not played his last game for the club amid fears he will need season-ending shoulder surgery.
“Dragons officials are hopeful he may be able to avoid going under the knife again but they face a nervous wait until the injury is fully assessed.”
Widdop will have further scans on Monday, head of athletic performance Nathan Pickworth confirmed.