The Twins recalled Smeltzer from Triple-A Rochester on Sunday.
Smeltzer has bounced between the big-league team and Triple-A all season, with his last appearance for the Twins coming on Aug. 15. He's worked both out of the rotation and the bullpen, racking up a 4.00 ERA and 1.19 WHIP with 27 strikeouts across 36 innings of work. He's likely to serve as a reliever capable of working multiple innings but could factor into the rotation with Kyle Gibson (ulcerative colitis) landing on the injured list Sunday.