The Senators returned Boucher to AHL Belleville on Saturday.
Boucher was summoned to the NHL, the team announced Thursday.
Boucher (groin) was reassigned to AHL Belleville on Wednesday, per CapFriendly.
Boucher sustained a groin injury during fitness testing Thursday, per Wayne Scanlan of the Ottawa Citizen.
Boucher agreed to terms on a three-year, entry-level contract with Ottawa on Tuesday.