Zub (foot) was placed on long-term injured reserve Tuesday.
Ottawa recalled Donovan Sebrango from AHL Belleville in a corresponding move. Zub sustained a fractured foot following a blocked shot in Saturday's 4-3 loss to Vancouver. He won't be available to play until at least Dec. 19 against Calgary, but he could be out longer. Zub has compiled two assists, 13 shots on goal, 19 blocked shots and 16 hits through 11 appearances this season.