The Warriors will be without star recruit James Fisher-Harris for at least a month.
He exited the field with a pectoral issue just 10 minutes into New Zealand's Sunday afternoon clash with Melbourne.
Fisher-Harris sustained the injury while trying to tackle Storm winger Xavier Coates.
The club has now confirmed he will miss four to six weeks.
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While the exact extent of his injury hasn't been revealed, his recovery timeline indicates he suffered a moderate pec strain.
He has crucially avoided a full rupture, which would require surgery and three months on the sideline.
Still, the 29-year-old's injury comes as a major blow for the Warriors, who have enjoyed a strong campaign thus far.
Since Fisher-Harris' arrival from Penrith, the side have won three of their five games, placing them sixth on the ladder.
Jackson Ford has come in at prop for Round 7, while Bunty Afoa will also be given minutes.
New Zealand Warriors confirmed team vs. Brisbane Broncos
1. Taine Tuaupiki
2. Edward Kosi
3. Kurt Capewell
4. Ali Leiataua
5. Adam Pompey
6. Chanel Harris-Tavita
7. Luke Metcalf
8. Jackson Ford
9. Wayde Egan
10. Mitch Barnett
11. Leka Halasima
12. Marata Niukore
13. Erin Clark
14. Bunty Afoa
15. Jacob Laban
16. Demitric Vaimauga
17. Te Maire Martin
18. Tanah Boyd
20. Tanner Stowers-Smith
21. Samuel Healey
22. Freddy Lussick
23. Morgan Harper
Click here for every Round 7 team list.