The Marlins have designated right-hander Preston Guilmet for assignment, according to the MLB.com transactions tracker. Outfielder Monte Harrison has been recalled from Triple-A Jacksonville to take his spot on the active roster.
Guilmet has been selected to the Miami roster a few times this year, but he hasn’t made it into a game. The 33-year-old has otherwise spent the year with Jacksonville, tossing 25 1/3 innings of 3.55 ERA ball with very strong strikeout and walk rates (34.3% and 6.1%, respectively).
The right-hander has appeared in parts of four major league seasons (2013-15, 2018). Altogether, he’s made 27 appearances at the highest level and thrown 33 innings with a 9.27 ERA and a 4.28 SIERA.