The Guardians recalled Dion from Triple-A Columbus on Saturday.
After being sent down to Triple-A on Friday, Dion will now turn around and rejoin the big-league bullpen to make up for the loss of Shawn Armstrong (calf). Dion owns a 5.17 ERA and 1.66 WHIP through 15.2 frames with Cleveland this year and will likely be limited to low-leverage work as long as he's in the majors.