The Blue Jays activated Arrighetti (foot) from the 15-day injured list Friday.
While Mason Fluharty is getting the start as the opener Friday against the Yankees, Arrighetti is expected to pitch as the bulk reliever. The right-hander has been shelved since July 24 and was acquired from the Astros at the trade deadline earlier this month in exchange for Daulton Varsho. Arrighetti owns a 4.60 ERA and 87:50 K:BB across 88 innings this season.