"He made an excellent recovery from his Achilles surgery only for this to happen. We wish him all the best for his surgery and we're confident he'll come back better than ever."
Roache made 11 appearances in his NRL rookie season and added another nine last year before suffering his Achilles injury in training.
One of the fittest players in the Warriors squad, Roache was again expected to push hard for the No9 jumper this season after he managed to usurp former Kiwis test hooker Issac Luke last year prior to his injury.
Roache's misfortune has seen the club blood 24-year-old Sam Cook in the dummy-half role in their two recent trial victories over Melbourne and the Gold Coast.
Cook is now in line to win a spot in the Warriors side for round one and could make his NRL debut against South Sydney in Perth next Saturday.
Following the departure of young playmaker Ata Hingano to Canberra, the Warriors yesterday announced the signing of former Titans utility Karl Lawton, who is capable of playing a variety of positions including hooker.
Meanwhile, new signing Gerard Beale continues to make progress in his recovery from the broken leg which ended his World Cup campaign in the Kiwis' opening match against Toa Samoa last October.
The former Cronulla premiership winning centre is expected to be available in late April.