The Arizona Diamondbacks made several significant adjustments to their roster during the 2026 offseason, focusing on maintaining core pitching assets and bolstering infield depth while navigating the complexities of player contract statuses. Key among these moves was the reacquisition of pitcher Merrill Kelly and the acquisition of third baseman Nolan Arenado from the St. Louis Cardinals, marking a notable return for Arenado to the NL West. The team aimed to balance financial commitments with competitive roster construction as it prepares for the upcoming season.
Major Free Agent Signings and Contracts
In an effort to solidify their pitching staff, the Diamondbacks re-signed Merrill Kelly to a two-year, $40 million deal that includes a vesting option for 2028 based on innings pitched in 2027. Right-hander Zac Gallen also returned on a one-year contract worth $22.025 million, with $14.025 million deferred. Michael Soroka was added on a one-year, $7.5 million deal that includes a $1 million buyout of a $10 million mutual option for 2027. On the position player side, Arizona signed catcher James McCann for one year at $2.75 million and first baseman Carlos Santana for one year at $2 million. Additional pitching depth was added with one-year contracts for Taylor Clarke at $1.55 million and Paul Sewald at $1.5 million.
Projected spending for the 2026 season is approximately $56.325 million, with a total payroll commitment reaching around $77.325 million when accounting for deferred payments.
Trades, Claims, and Player Acquisitions
Arizona’s offseason saw multiple trades and waiver claims aimed at shoring up various positions. The prominent trade included sending minor league right-hander Jack Martinez to the Cardinals in exchange for third baseman Nolan Arenado and $31 million to offset Arenado’s remaining contract. The Diamondbacks acquired right-handed pitcher Kade Strowd, right-handed pitcher Wellington Aracena, and infielder José Mejia from the Baltimore Orioles in exchange for infielder Blaze Alexander. Additional trades brought in minor league arms Josh Grosz from Colorado and Avery Owusu-Asiedu from Philadelphia, along with a waiver claim of right-handed pitcher Grant Holman from Oakland.
Contract Options and Minor League Additions
The club exercised Lourdes Gurriel Jr.’s $13 million player option for the 2026 season, ensuring his presence in the outfield roster. The Diamondbacks also bolstered organizational depth by signing a host of minor league players, including Jonathan Loaisiga, Derek Law, Joe Ross, Ildemaro Vargas, Shawn Dubin, Luken Baker, Tommy Henry, Aramis Garcia, Thomas Hatch, Isaiah Campbell, Junior Fernandez, Oscar Mercado, John Curtiss, Jacob Amaya, Juan Centeno, and Taylor Rashi. No contract extensions were finalized during this period.
Departures and Roster Adjustments
The Diamondbacks saw the loss of several players through trades and free agency, including Jake McCarthy, Blaze Alexander, Kyle Backhus, Jalen Beeks (who remains unsigned), and Gus Varland. The absence of these players prompted Arizona to rethink some positions, especially in the outfield and utility spots, to fill gaps left by departures.
Ketel Marte’s Unresolved Trade Speculation
Last August, rumors of tension involving star second baseman Ketel Marte sparked speculation about the possibility of Arizona trading him. Over the offseason, nine teams were publicly reported to have expressed interest, including the Detroit Tigers, Cincinnati Reds, Boston Red Sox, Tampa Bay Rays, Seattle Mariners, Pittsburgh Pirates, Philadelphia Phillies, San Francisco Giants, and Toronto Blue Jays. However, no trade materialized, and general manager Mike Hazen characterized a transaction as “mostly unlikely” by November, placing a firm deadline on trade discussions in early January.
Marte signed an extension less than a year prior that ties him to the Diamondbacks through 2031 with over $102 million remaining on his contract, a financial commitment that Arizona would have relieved if a trade had occurred. Additionally, Marte is poised to gain full no-trade protection as a 10-and-5 player shortly after the 2026 season begins, which reduced the team’s leverage in trade negotiations. Assuming the team holds to its set timeline, Marte is expected to remain part of Arizona’s Opening Day roster.
The Strategic Acquisition of Nolan Arenado
In contrast to Marte’s unsettled status, Arizona’s major infield acquisition was the trade for Nolan Arenado, a player who also holds full no-trade rights. Arenado exercised his veto power twice in the past, including rejecting a proposed trade to Houston last offseason, and reportedly preferred Arizona as his new destination over other teams like the Oakland Athletics.
Following a down season in 2025—hitting .237/.289/.377 with 12 home runs and missing extended time due to a shoulder strain—the Cardinals were eager to begin rebuilding and were willing to absorb a large portion of Arenado’s remaining salary, leaving the Diamondbacks responsible for only about $11 million of the $42 million owed over the next two seasons. Arizona parted with Jack Martinez, a modest pitching prospect, for a chance at a rebound performance from Arenado, who is known for his superior defensive skills. The hope is that playing at Chase Field will improve Arenado’s offensive output closer to league-average levels.
Missed Opportunity for Alex Bregman
The Arenado trade followed Arizona’s unsuccessful pursuit of another elite third baseman, Alex Bregman, who signed a five-year, $175 million contract with the Chicago Cubs, including $70 million deferred. Interest from the Diamondbacks in Bregman surprised some observers since the team earlier signaled plans to reduce payroll. However, Arizona appeared willing to make a costly commitment for a regional star from New Mexico, similar to their 2024 signing of Corbin Burnes.
The Marte trade speculation further complicated the team’s free-agent efforts, as trading Marte would have freed finances potentially earmarked for high-profile signings like Bregman, but might have diminished the appeal of the club’s overall roster to star players.
Additional Free Agent and Trade Targets
Alongside Bregman, the Diamondbacks showed interest in free agents such as Pete Fairbanks, Pierce Johnson, Munetaka Murakami, and Paul Goldschmidt. Trade talks related to Marte involved names like Cole Young, Ryan Pepiot, Shane Baz, Brandon Lowe, and Brendan Donovan. However, none of these potential moves came to fruition by the close of the offseason.
Focus on Pitching in Return Packages
If a Marte trade had happened, Arizona made it clear that they were prioritizing controllable pitching prospects in any return, reflecting both the value of young arms and the organization’s ongoing need for rotation help. The recent returns of Merrill Kelly and Zac Gallen, both key starters who had been expected to depart, alleviate some concerns but do not completely answer questions about the rotation’s strength.
Re-signed Rotation Anchors Kelly and Gallen
Merrill Kelly rejoining the team on a two-year deal was anticipated, given his previous openness to return. Zac Gallen’s one-year contract at the qualifying offer price, with deferred salary, was somewhat surprising, considering his mediocre 2025 performance, which included a 4.83 ERA, 21.5% strikeout rate, and 8.1% walk rate over 192 innings. Market hesitation stemmed partly from his last two seasons’ dips in effectiveness and the draft pick compensation attached to signing him.
With Kelly and Gallen back, the Diamondbacks hope they can rely on Eduardo Rodriguez to advance in his third year, Brandon Pfaadt to develop further, and Ryne Nelson to build on a solid previous campaign. A key challenge remains maintaining health, as early reports from camp indicated Kelly dealing with back issues and Pfaadt facing side discomfort.
Injury Challenges and Depth Concerns
The rotation’s durability is fragile, with Corbin Burnes recovering from Tommy John surgery and unlikely to return until mid-season or later, and Blake Walston also sidelined by TJ surgery until May or June. Cristian Mena continues to manage a teres major strain sustained the prior season. Michael Soroka, signed for added depth, brings a history of injuries but offers versatility as both starter and reliever.
Arizona’s bullpen faces its own uncertainty. Top arms Justin Martinez and A.J. Puk are recovering from serious arm surgeries and will be out for much of the first half of the season. Reinforcing the relief corps thus became a significant offseason objective, although the team’s signings were modest compared to competitors. Paul Sewald and Taylor Clarke joined on low-cost deals, hoping to provide value, with Sewald aiming to rebound from prior injuries and Clarke looking to replicate his solid 2025 performance.
Relief Acquisitions and Prospects
Kade Strowd, acquired in the trade with Baltimore, impressed in his MLB debut season with a 1.71 ERA over 26 1/3 innings, despite some underlying peripheral concerns. He is viewed as a groundball specialist with minor league options remaining, potentially valuable for bullpen flexibility. Arizona also pursued waiver claims and minor league contracts for pitchers such as Grant Holman, Jonathan Loaisiga, and Derek Law, hoping that one or more non-roster invitees may emerge through spring training to bolster the bullpen.
Position Player Moves and Outfield Reconfiguration
The departures of utilityman Blaze Alexander and outfielder Jake McCarthy necessitated changes in the Diamondbacks’ roster depth. Tim Tawa is expected to fill the primary utility role, and Jorge Barrosa or Jordan Lawlar could replace McCarthy’s outfield responsibilities. Lawlar, who struggled offensively in limited major league action, will make a challenging switch from infield to center field for the first time in his professional career. At just 23 years old, Lawlar is tentatively positioned to start regularly but still faces a steep adjustment curve.
Depending on Lawlar’s progress, he might play more frequently in left field with Alek Thomas moving into center, or the two could platoon in center field, which would affect depth options for left field. Lourdes Gurriel Jr. is recovering from a torn ACL and may not return until June, while Corbin Carroll is a consistent presence despite recent hamate surgery during spring training. Utilityman Ildemaro Vargas also offers some flexibility by covering both infield and outfield.
Bench and First Base Options
James McCann was re-signed to serve as the backup catcher following an injury to Adrian del Castillo. Veteran Carlos Santana was signed to a one-year, $2 million deal, expected to share time at first base with Pavin Smith. Santana’s defensive skills are valued, although his offensive output declined significantly in 2025. His role could be limited to platoon or designated hitter duties depending on how Arizona manages its lineup rotation. Prospect Tyler Locklear is projected to contribute starting mid-season after recovering from shoulder and elbow surgeries.
Payroll and Financial Outlook
The Diamondbacks’ payroll for 2026 is estimated at approximately $195.2 million, slightly exceeding the previous year’s $191.3 million total. This increase runs counter to earlier statements from team chairman Ken Kendrick, who indicated intentions to cut spending. Kendrick emphasized a commitment to investing wisely and expressing appreciation for fan support as a partnership, stating,
“I want our fans to feel that we are committed to investing every dollar possible and putting the best team we can put together on the field.… We’re in a partnership with our fans. They generate revenue by buying tickets and coming to ball games and supporting us. And as a good partner, we need to take the money they spend and invest it wisely, and that’s what we’re trying to do.”
Despite a moderate payroll increase and retention of key players, Arizona has not qualified for the playoffs in the past two seasons. The front office’s offseason decisions reflect confidence in the existing core but raise questions about whether the current roster configuration is sufficient to break through into postseason contention.
Fan and Expert Evaluation of Arizona’s Offseason
Public opinion on the Diamondbacks’ offseason has been mixed, with votes from 274 respondents showing a plurality grading it a “C” (44%), followed by “B” (35%). A smaller percentage offered harsher critiques, while only a minority awarded “A” grades. This distribution highlights the tension and uncertainty accompanying Arizona’s efforts to balance financial prudence with competitive aspirations.
