The Warriors duo of Lance Hohaia and second rower Ben Matulino aren't likely to be available for the second-round National Rugby League clash against defending premiers the Manly Sea Eagles.
20-year-old Matulino was forced off the field with a left ankle sprain after only 14 minutes of Saturday's season-opening 26-18 win over Parramatta at Mount Smart Stadium.
Interchange dummy half Hohaia was sidelined with a left knee sprain after only 19 minutes on the field.
The Warriors say the extent of the injuries and the length of time the two players will be out for won't be fully established until later this week.
Hohaia will have a scan to further assess his injury.
The Warriors will fly to Sydney on Saturday for the Sunday game at Brookvale Oval in Sydney.