The Guardians recalled Herrin from Triple-A Columbus on Saturday, Zack Meisel of The Athletic reports.
The 26-year-old lefty will return to Cleveland's bullpen with the placement of Triston McKenzie (elbow) on the 15-day injured list Saturday. Herrin has made 10 major-league appearances this season, allowing nine runs over 12.2 innings while racking up 14 strikeouts.