Facing a season in Australia due to the coronavirus pandemic, the NRL club has limited resources across ditch should injuries and illness strike.
They have 24 players available to face the Raiders on the Gold Coast this evening, with a further four in self-isolation, still two weeks away from being available.
Kearney says players are already playing out of position.
Kick off's at 5pm.
Later the Roosters host the Sea Eagles at 7:30, before the Sharks take on the Storm at 9:35.