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Rockies Promote Prospect Welinton Herrera, Worth a Speculative Add for Saves?
According to Thomas Harding of MLB.com, the Colorado Rockies are promoting their No. 14-ranked prospect, left-handed pitcher Welinton Herrera, to the MLB roster. Herrera has spent the first part of the 2026 season in Triple-A and will now make his MLB debut in the coming days. Herrera has operated primarily out of the bullpen with Albuquerque, as he has made 13 relief appearances compared to just one start. Over his first 22 2/3 innings with the top club in the system, the southpaw has posted a hefty 5.16 ERA with a modest 1.72 WHIP. While his ratios are high, he has flashed solid strikeout potential, totaling 34 over this brief stint. Last summer with High-A and Double-A, Herrera held a strong 2.64 ERA with a 99:25 K:BB over 64 2/3 innings, suggesting the raw talent is there. However, given the growing pains he endured at the top level, managers should only consider picking up Herrera in the short-term in deeper leagues. If he finds his footing, he could eventually compete for save opportunities, as he earned 17 during the 2025 season.
Source: MLB Pipeline
Source: MLB Pipeline
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