The Rockies are going to promote their top pitching prospect, reports Patrick Lyons of Just Baseball. Right-hander Chase Dollander will make his major league debut when he starts for the club on Sunday. There’s already an opening on the 40-man roster, so the club will only need to make a corresponding active roster move.
Dollander, now 23, has been a hyped-up name for a while now. He put up big numbers for Tennessee and was ranked as one of the top players available in the 2023 draft. The Rockies selected him with the ninth overall pick and then signed him to a slot-value bonus of $5,716,900.
He made his professional debut last year in impressive fashion. He tossed 118 innings over 23 starts, going from High-A to Double-A in the process. He allowed just 2.59 earned runs per nine, striking out 33.9% of batters faced while giving out walks at a 9.4% clip.
Going into 2025, the industry consensus is that he’s one of the top prospects in the league. Baseball America currently lists him #7 overall and MLB Pipeline #24. FanGraphs had him at #12 to start the season, but with the now-graduated Dylan Crews as one of the guys ahead of him. ESPN had Dollander at #14, though also behind Crews. Keith Law of The Athletic was more bearish, putting Dollander down at #75, with concerns about some of his results in Tennessee.
The Rockies reportedly gave some consideration to having Dollander in the season-opening rotation. They sent him to Triple-A Albuquerque instead, where he made one start, allowing one earned run over four innings. They started the season with just four games before their first off-day, having Kyle Freeland, Antonio Senzatela, Ryan Feltner and Germán Márquez start those.
Austin Gomber likely would have had a fifth spot but he started the season on the 15-day injured list with shoulder soreness. He made a rehab start for Albuquerque but was scratched from making a second due to inflammation in that shoulder, per Thomas Harding of MLB.com. Perhaps due to Gomber’s setback, Dollander will get an early-season call-up.
The big unknown will be how Dollander handles the challenges of pitching at Coors Field, the most hitter-friendly venue in the big leagues. Geoff Pontes of Baseball America believes Dollander is well positioned to do well, even though plenty of other talented arms have struggled there. Pontes points out that pitchers with low release heights, such as Dollander, have previously fared well at Coors. The piece also cites the spin efficiency of Dollander’s fastball, which sits between 96 and 98 miles per hour, as a factor that could work in his favor. In addition that fastball, he throws a changeup, a curveball and another breaking ball that is characterized as either a slider or a cutter by various sources.
More to come.
