Rockies Pitching Depth: Who Will Step Up?

The Colorado Rockies continue to grapple with pitching depth issues in their 2026 season, compounded by injuries and inconsistent performances. This instability has necessitated a reevaluation of their available reinforcements as the season winds down. Michael Lorenzen was recently designated for assignment, creating an opening in the rotation that Tanner Gordon is expected to fill.

Several pitchers are on the mend or being evaluated for potential returns. Jose Quintana, sidelined by a left elbow sprain since late May, is progressing well and could rejoin the team before the season concludes. His recent bullpen sessions and upcoming live batting practice suggest a rehab assignment is imminent. Prior to his injury, Quintana had shown improved form, with a 3.01 ERA in his last five starts.

Other pitchers like Sean Sullivan and Eiberson Castellano face different challenges. Sullivan is on the injured list with shoulder inflammation and is likely to be shut down for the season, focusing on recovery for 2027. Castellano, signed to a minor league deal, has performed solidly in the minors, offering potential innings if needed.

Prospects like Valente Bellozo, Keegan Thompson, Jake Brooks, and Jack Mahoney are also being assessed. While some have had brief major league stints, they mostly remain in Triple-A, working through command issues and adjustment periods. Mason Adams, recently acquired, shows promise but may have his workload managed post-Tommy John surgery.

Despite the current struggles, the Rockies' farm system has shown significant improvement, climbing to the 16th-ranked system in baseball. This development offers a glimmer of hope for future competitiveness, emphasizing the ongoing efforts to build organizational depth and develop pitching talent.