Tomkins left the Warriors’ weekend game with Parramatta just 11 minutes into the action. He should be available again in late April or early May.
“The outcome is a lot better than it could have been,” said Warriors head coach Andrew McFadden.
“Sam will rehab the injury and should be available again in a few weeks.
“Obviously it’s a setback being without a player of his quality but it’s also a big opportunity for Tui (Lolohea).
“He’s already had a full game at fullback against the Knights and he played there for another 30 minutes on Saturday. He’s a player with special ability and we have great confidence in him.”