Kings fullback Malcolm Jaer will be sidelined for up to six weeks after breaking his hand against the Lions.
Lock Schalk Oelofse will also sit out Saturday's game against the Jaguares in Buenos Aires.
'In addition to the loss of Malcolm Jaer, Schalk Oelofse has picked up a concussion against the Lions and will not be available for the tour to Argentina this weekend,' said Kings coach Deon Davids.
In some good news for the Kings, Sti Sithole (elbow) and Edgar Marutlulle (knee) have recovered from their respective injuries and are set to return to training this week.
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