Overview

• Castillo was designated for assignment, exposing the left-hander to waivers, and Devenski was recalled from Triple-A Syracuse to bolster middle relief.
• After struggling with Arizona early (11.37 ERA in five appearances), Castillo posted a 2.35 ERA over 15 1/3 innings in 16 outings for the Mets.
• Castillo has bounced on and off the roster this season, including prior DFAs and a recent call-up when Reed Garrett went on the injured list, with his latest outing two innings against the Marlins.
• Devenski, signed to a minor-league deal in October, has shuttled between Syracuse and Queens across brief April, May and July stints, even electing free agency after a third DFA before re-signing.
• In limited work this year, Devenski has produced a 2.84 ERA and 144 ERA+ across 12 2/3 innings, as the Mets make smaller bullpen moves after adding Gregory Soto, Tyler Rogers and Ryan Helsley at the deadline.