Malenstyn (personal) rejoined the Sabres on Wednesday, per Paul Hamilton of WGR Sports Radio 550.
Malenstyn missed Monday’s 4-2 loss to Montreal. He had been designated as a non-roster player during his absence, but Buffalo reassigned Josh Dunne to AHL Rochester on Wednesday to accommodate Malenstyn’s return. The 27-year-old Malenstyn has no points, a minus-2 rating, three shots, 13 hits and four blocks in five outings this year.