The Rockies optioned Herrera to Triple-A Albuquerque on Sunday, Patrick Lyons of JustBaseball.com reports.
The 21-year-old lefty was added to Colorado's 40-man roster in November but was never a likely bet to make the Opening Day roster. Herrera spent most of last season with Double-A Hartford, where he had a 3.69 ERA, 1.30 WHIP and 70:19 K:BB across 46.1 innings.
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Rockies' Welinton Herrera: Placed on 40-man roster
Rotowire
The Rockies selected Herrera's contract from Double-A Hartford on Tuesday, Patrick Saunders of The Denver Post reports.
Herrera is a lefty hurler who advanced to Double-A for the first time last season. Over 37 relief appearances at that level, he posted a 70:19 K:BB over 46.1 innings along with a 3.69 ERA and 1.30 WHIP. Herrera notched a combined 16 saves between High-A and Double-A in 2025, and the Rockies may be eyeing him as a future closer at the major-league level.
