Rockies To Select T.J. Rumfield, Brett Sullivan
The Rockies will carry first baseman T.J. Rumfield and catcher Brett Sullivan on their Opening Day roster, manager Warren Schaeffer announced over the weekend (link via Thomas Harding of MLB.com). Colorado also tabbed Ryan Feltner as their fifth starter, meaning Chase Dollander will begin the season in the bullpen.
It’s the first major league call for the 25-year-old Rumfield. Colorado added the lefty-swinging first baseman in a trade with the Yankees in January. They sent hard-throwing reliever Angel Chivilli to New York. A former 12th round pick who went unselected in December’s Rule 5 draft, Rumfield isn’t a highly touted prospect. He’s coming off a strong season in Triple-A, though, and the Rockies offered a much clearer path to playing time than he would’ve had behind Ben Rice and Paul Goldschmidt in the Bronx.
Rumfield hit .285/.378/.447 with 16 homers across 587 plate appearances in the minors last season. He worked walks at a 12% clip while striking out at a lower than average 18.4% rate. Rumfield’s middling batted ball metrics probably held him back from getting a look as a Rule 5 draftee. His 36.6% hard contact rate and 87.8 mph average exit velocity would be at the lower end for an MLB first baseman.
At the same time, Rumfield doesn’t have much more to prove against minor league pitching. He has posted above-average numbers at every stop, including nearly two full seasons in Triple-A. He’s an advanced contact hitter with a quality approach. That was on display this spring as well. Rumfield batted .280 with four homers and remarkably struck out just one time in 58 plate appearances in camp.
There’s a decent chance he’s the starting first baseman on Opening Day. Colorado had the worst first base group in the majors a year ago. They moved on from Michael Toglia over the winter, acquiring Rumfield and Edouard Julien as options at the position. Julien could also factor in at second base depending on how the Rox use utility player Willi Castro.
They can move Castro between second and third, though Schaeffer announced that infielders Ryan Ritter and Kyle Karros also made the team. They account for two bench spots, while Sullivan wins a third as the backup catcher. (The final bench spot is undetermined, as infielder Tyler Freeman is questionable for Opening Day with back soreness.) Sullivan beat out Braxton Fulford for the #2 catcher role; the latter was officially optioned yesterday.
Colorado added Sullivan on a minor league deal over the winter. The 32-year-old played in three big league games with the Pirates last year. He has 43 games and 112 MLB plate appearances under his belt, batting .204/.250/.291 with a pair of home runs. Sullivan had a big camp, hitting .378 with a pair of homers and three walks and strikeouts apiece in 16 games. Fulford hit .270 with three longballs, eight strikeouts and one walk.
Sullivan showed enough that the Rox want to keep him around to back up Hunter Goodman. He’s out of options, so he’ll need to stick on the MLB roster or be exposed to waivers. The Rockies will need to officially select Rumfield’s and Sullivan’s contracts on Wednesday. They can do so without designating anyone for assignment. Pierson Ohl and RJ Petit recently underwent Tommy John surgeries and can be placed on the 60-day injured list.
Meanwhile, the news on the pitching side comes as a surprise. Feltner and Dollander were competing for the final rotation spot behind Kyle Freeland and free agent signees Michael Lorenzen, Jose Quintana and Tomoyuki Sugano. Neither pitcher seized the job during camp. Feltner gave up 13 runs while walking 10 batters in 11 2/3 innings. Dollander surrendered 11 runs (10 earned) with seven walks and three hit batters across 14 frames.
Given Dollander’s pedigree as a former top 10 pick, it seemed that a rebuilding Colorado team would prefer to have him continue to start. They’ve opted for Feltner instead but apparently don’t believe Dollander would benefit from working out of the Triple-A rotation. He’ll join Antonio Senzatela as a multi-inning arm out of the bullpen.
Aside from Freeman’s health, the bullpen is the last unknown part of the Opening Day roster. There a couple middle relief spots up for grabs and one out-of-options player (Keegan Thompson) trying to maintain his spot on the 40-man roster.
Rockies Could Add Short-Term Help At First Base, Listen On Outfielders
The Rockies are starting from scratch, and new baseball ops leaders Paul DePodesta and Josh Byrnes have a long list of issues to address. It’ll be a yearslong process, but in the short term, Patrick Saunders of the Denver Post writes that it’s “likely” the team will bring in some short-term help at first base or second base. Saunders adds, as has been previously suggested, that the Rockies could listen on their young outfielders as they look to bring in controllable starting pitching. Center fielder Brenton Doyle was Colorado’s most sought-after player at this summer’s deadline, Saunders adds.
Both first base and second base are clear areas of need in Denver (as is third base, for what it’s worth). Shortstop Ezequiel Tovar is a solid everyday option who’s affordably signed through at least 2030 (with a club option for 2031). The rest of the infield is up in the air. Last year’s leader in reps at first base, Michael Toglia, was already non-tendered after a poor season. Second basemen Kyle Farmer and Thairo Estrada both struggled and became free agents. Prospect Adael Amador hit well in Triple-A but struggled immensely in 41 big league games. It’s a similar story with 23-year-old Kyle Karros at the hot corner.
The top end of the Rockies’ system does include recent high draft picks like Ethan Holliday and Charlie Condon, who could be options at the infield corners in the long run. Neither Amador nor Karros is as highly regarded, but both (Amador in particular) have drawn favorable scouting reports and placed well within public rankings of the Rockies’ minor leaguers. Both have hit well in the upper minors, and it’s easy to imagine both getting a further look in 2026.
With first base standing as a particular area of need (and one that lacks an in-house solution), the free-agent market possesses plenty of lower-cost names. Veterans like Nathaniel Lowe, Rhys Hoskins, Josh Bell and Paul Goldschmidt are all coming off relatively down seasons. More versatile options who could handle first as well as another infield spot include Wilmer Flores, Donovan Solano and perhaps Ty France. Someone like Jeimer Candelario could be had on a minor league pact, most likely.
With regard to the team’s outfielders, Doyle is the most obvious trade candidate. He’s entering his first season of arbitration eligibility and is projected by MLBTR contributor Matt Swartz to earn a highly affordable $3.2MM in 2026 as a Super Two player. The Rockies control him for another four seasons, all the way through 2029.
Doyle, 28 in May, is coming off a down year at the plate (one in which his family went through an awful tragedy). Doyle still connected on 15 homers and swiped 18 bags in 20 attempts, though his rate stats dropped. His .233/.274/.376 slash came out to a dismal 65 wRC+ (35% worse than league-average, when weighting for home park), but he turned in a solid .260/.317/.446 slash with 23 round-trippers and 30 steals as recently as 2024. He’s also drawn superlative grades for his defensive acumen in center field dating back to his 2023 MLB debut.
It’s an extremely thin market for center fielders in free agency this winter. Cody Bellinger has really only played the position part-time in recent seasons and will cost well over $100MM in free agency, taking him off the table for some smaller-payroll clubs. Harrison Bader is coming off a career year at the plate and reported to be looking for a three-year deal that some teams might find steep, given his inconsistent track record at the plate. The trade market includes names like Luis Robert Jr., Jarren Duran and Alek Thomas; the Twins are reportedly planning to keep Byron Buxton (and starters Joe Ryan and Pablo Lopez).
Few center fielders in the sport possess Doyle’s blend of speed, power and defensive acumen. An above-average strikeout rate and below-average walk rate might mean he’ll always have fairly low marks in batting average and on-base percentage, but he’s extremely toolsy and was worth about four wins above replacement in that 2024 season. For the Rockies, it’s a question of whether to move him now or to hold and see if his value increases in subsequent seasons. With a big first half, he could be one of the prizes of the summer trade market. On the other hand, if Doyle incurs an injury or sees his offensive doldrums continue, it could further sap his value.
There’s no perfect solution, but with teams like the Royals, Marlins, Phillies, Guardians and Angels (among others) all potentially on the hunt for some center field help, it’s possible Doyle could draw strong enough interest to sway DePodesta and Byrnes as soon as this winter.
The other outfielders on the Rockies’ roster carry less value. Mickey Moniak belted 24 homers and hit .270/.306/.518 last season but did so with bottom-of-the scale defensive grades in the outfield (-23 Defensive Runs Saved, -8 Outs Above Average). Jordan Beck and Zac Veen were both top prospects at one point, but neither has solidified himself in the majors yet. Beck hit .258/.317/.416 with 16 homers and 19 steals but needed a .351 BABIP to get there, thanks largely to his near-30% strikeout rate. Veen struggled in his first 37 big league plate appearances and has yet to hit sufficiently in a pair of seasons at Triple-A. Either could be swapped out for a former top pitching prospect with similar struggles, speculatively speaking, but neither is going to bring back someone the Rockies can confidently plug into their rotation from the jump.
Rockies Select Kyle Karros, Aaron Schunk
The Rockies announced that they have selected the contract of infielders Kyle Karros and Aaron Schunk. Thomas Harding of MLB.com reported on those promotions prior to the official announcement. In corresponding moves, they have placed infielder Orlando Arcia on the 10-day injured list due to right elbow inflammation, transferred infielder Thairo Estrada to the 60-day IL and placed right-hander Angel Chivilli on the restricted list. It’s unclear why Chivilli has been placed on the restricted list.
Karros, 23, is the son of Eric Karros. The younger Karros was Colorado’s fifth-round draft pick in 2023. Since then, he has been climbing the minor league ladder, generally putting up good numbers. He has taken 1,010 minor league plate appearances across multiple levels with an 11.5% walk rate, 20.4% strikeout rate, .304/.393/.459 batting line and 135 wRC+. That includes a .301/.398/.476 line this year, mostly at Double-A but also with a few games at the Complex League and at Triple-A.
Baseball America currently lists him as the #14 prospect in the Rockies’ system. Their report notes that he is a strong defender at third base with a good arm. His offensive profile is highlighted by his contact ability, which matches with his numbers. His strikeout and walk numbers are good but he doesn’t appear to have a ton of power. He hit 15 home runs in High-A last year but has just six so far in 2025.
Schunk, 28, was outrighted off the roster in June. He has a dismal .230/.254/.311 line in 127 big league plate appearances. His minor league work has been better but still subpar. From 2023 to the present, he has 1,065 Triple-A plate appearances. His .293/.344/.469 line in that time looks impressive at first glance but actually translates to an 87 wRC+ in the context of the hitter-friendly Pacific Coast League.
The Colorado infield took a few recent hits. Estrada landed on the 10-day IL two days ago due to a right hamstring strain. With today’s transfer to the 60-day IL, his season is done. With Arcia landing on the 10-day IL today, that’s two infield vacancies created this week. The club also lost Ryan Ritter to the IL last month due to a finger laceration.
Those injuries have created openings for Karros and Schunk. The Rockies don’t have a lot to play for this year but have long-term opportunities available. Aside from Ezequiel Tovar at shortstop, there’s not much certainty in the infield for future seasons. Guys like Warming Bernabel and Adael Amador are already getting some big league at-bats and now Karros and Schunk can join them.
Circling back to Estrada, this is the final nail in the coffin for his very challenging season. He had a solid three-year run with the Giants from 2021 to 2023. He slashed .266/.320/.416 for a 105 wRC+ in that time while stealing 45 bases and bouncing around the diamond to all three outfield spots and the three infield positions to the left of first base.
He had a rough campaign last year, however. He went to the IL multiple times due to left wrist sprains and slashed just .217/.247/.343 for a 65 wRC+. The Rockies gave him $4MM for 2025 with the hope of a return to form, a logical bet for a rebuilding club. If Estrada had been able to get back to his previous level of production, he could have been an intriguing midseason trade candidate.
That did not come to pass. He was hit by a pitch in spring training and broke his right wrist. That put him on the IL for the first two months of the season. He also missed time with a sprained left thumb and now this hamstring strain has put him out for the rest of the campaign. Around those injuries, he only got into 39 games and hit .253/.285/.370. He can be retained for 2026 via arbitration but is surely going to be non-tendered. He will return to the open market but his appeal should be light on the heels of these two injury-marred seasons.
Photo courtesy of Allan Henry, Imagn Images