New Zealand Warriors hooker Issac Luke has been ruled out for a month, needing surgery on his knee.
Luke suffered the injury during the Warriors' 20-16 win over the Penrith Panthers in the NRL on Saturday.
The Warriors hope he will make his return against the Parramatta Eels in the final round on September 4.
Jazz Tevaga has been added to the Warriors' squad for Sunday's clash against the Gold Coast Titans.
The Warriors are eighth in the table as they look to earn a finals spot.