Arrighetti is expected to be deployed as a bulk reliever in Tuesday's game against the Guardians, Keegan Matheson of MLB.com reports.
Spencer Miles will open the game for the Blue Jays before Arrighetti assumes the bulk of the workload. Arrighetti has made one traditional start and one bulk relief appearance so far for Toronto, allowing seven runs (six earned) with an 8:4 K:BB over 7.1 frames.