Rockies select contract of Eiberson Castellano, make additional roster moves

MLB Colorado Rockies pitcher Eiberson Castellano | Rick Scuteri-Imagn Images Today, the Colorado Rockies announced a series of roster moves, most notably, the promotion of RHP Eiberson Castellano from Triple-A Albuquerque.

class="has-text-align-none">The 25 year old will be making his Major League debut with his first appearance, bringing to eight the total number of Rockies MLB debuts this season.

class="has-text-align-none">There was some hint of this move as Castellano was highlighted last weekend by president of baseball operations Paul DePodsta wheo said of the righty, “Eiberson Castellano made his first start last night in Triple-A. He had done really, really well in Double-A, had a terrific start last night, went six shutout in his first Triple-A game.”

class="has-text-align-none">Last week, Castellano was named the Pacific Coast League Pitcher of the Week after throwing those six scoreless innings DePodesta referred to. Castellano allowed one hit, two walks and seven strikeouts in that game against the Salt Lake Bees.

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style="background-color: #F4F4F4; height: 14px; width: 144px;">Prior to his promotion to Albuquerque, Castellano went 4-2 with a 2.72 ERA (53.0 IP, 16 ER) in 10 starts with Double-A Hartford. His was the second-lowest ERA in the Eastern League.

class="has-text-align-none">The native of Maracaibo, Venezeuala, was signed by Colorado to a Minor League contract on December 5, 2025 after spending the first five seasons of his professional career in the Philadelphia Phillies organization. In 109 career Minor League appearances (48 starts), has gone 21-16 with a 3.78 ERA (333.1 IP, 140 ER), 137 walks and 390 strikeouts.

class="has-text-align-none">Castellano’s promotion was not the only news.

class="has-text-align-none">The Rockies also optioned right-handed pitcher Jeff Criswell to Albuquerque. As a reminder, Criswell is just coming off Tommy John surgery. In two innings pitched over two games, he has a 0.00 ERA

class="has-text-align-none">Finally, right-handed pitcher Valente Bellozo cleared waivers and accepted an outright assignment to Triple-A.

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