Melbourne will be without young fullback Scott Drinkwater for an extended period of time, after the 21-year-old suffered a ruptured pec during the Storm's 14-6 trial loss to North Queensland on Saturday.

Drinkwater will now miss the next 3-4 months, as he prepares for surgery in the coming days.

Drinkwater was firming as Melbourne's fullback replacement for the now-retired Billy Slater, although Craig Bellamy must now go down a different route to fill the vacant slot.