The Arizona Diamondbacks have finalized a one-year contract with Zac Gallen, pending a physical examination. This agreement involves a guaranteed $22.025 million, matching the qualifying offer Gallen declined last November. However, about $14 million of this total is deferred over five installments from 2031 to 2035, meaning the Diamondbacks will only pay roughly $8 million upfront for the 2026 season. Once official, Arizona will need to open spots on their 40-man roster for both Gallen and reliever Paul Sewald, though they have sufficient options to place players on the 60-day injured list to manage space.
Performance Challenges Influence Market Interest for Gallen
Gallen’s value on the free-agent market took a hit after a difficult 2025 campaign, a notable turn from expectations during last offseason that had pegged him as a candidate for a $100 million-plus contract. Despite remaining healthy and making all 33 starts for Arizona, Gallen posted career-worst rate statistics, including a 4.83 earned run average (ERA) and a 21.5% strikeout rate, the lowest of his career.
The season’s start was especially rough for Gallen, as he yielded at least five earned runs per nine innings in each of the first four months. At the All-Star break, his ERA stood at 5.40, while at the trade deadline, it rose slightly to 5.60 over 127 innings. The Diamondbacks, who were active sellers at the deadline, traded Josh Naylor, Eugenio Suárez, Merrill Kelly, and Shelby Miller but did not receive offers for Gallen that exceeded the value of the draft pick they would have gained if he had signed elsewhere after rejecting the qualifying offer.
Late-Season Improvement Offers Hope for Rebound
Arizona approached the latter part of the season cautiously to avoid overburdening its young pitchers, which allowed them to benefit from Gallen’s innings. He improved markedly after the trade deadline, delivering quality starts in eight of his last eleven outings and reducing his ERA to 3.32 across 65 innings. The Diamondbacks finished 7-4 in those starts, hitching their postseason hopes to Gallen’s late-season upswing in a competitive National League West division.
Despite the improvement, Gallen’s late-season performance did not fully restore his earlier effectiveness. His strikeout rate dipped to 20% during this stretch, well below his usual 25-29% range in prior MLB campaigns. Additionally, his swinging strike rate, a measure of how often batters miss his pitches, fell to 9.5%, the second-lowest rate of his career.
Pitching Arsenal and Adjustments Enter 2026 Season
Gallen’s core pitching tools remained consistent, with his fastball averaging 93.5 mph, which aligns with league average for right-handed starters. However, opposing hitters have increasingly found success against his heater over recent seasons. While his knuckle-curve and changeup, his top secondary pitches, have yielded better results, his occasional cutter, slider, and sinker were often hit hard.
In the closing months of 2025, Gallen reduced reliance on his four-seam fastball, opting instead for more changeups, a shift that may continue into the upcoming season. Statcast metrics suggest that Gallen’s expected ERA, based on his strikeout and walk rates combined with batted-ball data, stood at 4.28, with a SIERA (Skill-Interactive ERA) of 4.24. A rebound toward these predictive figures would position him as a league-average starter for Arizona.
Financials and Broader Team Strategy Influence Contract Terms
The Diamondbacks had expressed interest in retaining Gallen since November, prepared to guarantee the $22.025 million regardless. His decision to reject the qualifying offer nevertheless appears to have created payroll flexibility that allowed the club to re-sign free agent Merrill Kelly to a two-year, $40 million agreement. Arizona’s front office consistently emphasized a preference to keep Gallen if a feasible financial arrangement could be reached.
Owner Ken Kendrick praised Gallen in a September statement:
“He’s a special young man who spent nearly seven years as a D-Back. He definitely had an up-and-down season — performed better in the later part of the year, certainly, than earlier in the year. … He’s loved being a Diamondback,”
Kendrick noted, continuing,
“I don’t want to say it’s out of the touch of reality that we’d work out an arrangement to bring him back. He’s been a great D-Back. Last I recall, he was the guy who pitched seven or eight innings of no-hit ball in a World Series game for the Arizona Diamondbacks. … He’s the guy you want to root for.”
Clubhouse and Rotation Stability with Gallen’s Return
Manager Torey Lovullo expressed enthusiasm for Gallen’s return, affirming the locker room’s positive reception:
would welcome him with open arms, certainly
if a deal was reached. Joining Merrill Kelly, Ryne Nelson, Eduardo Rodriguez, and Brandon Pfaadt in the projected starting rotation, Gallen’s contract impacts other pitcher roles. Free agent acquisition Michael Soroka may shift to long relief duty unless the Diamondbacks choose to employ a six-man rotation. Without a clear ace until Corbin Burnes returns from Tommy John surgery—targeting a midseason comeback—the team has gained more roster stability compared to the offseason’s uncertainty. This steadiness allows Arizona to be patient with prospects like Mitch Bratt and Kohl Drake, whom they acquired in the Merrill Kelly trade.
Payroll Considerations and Draft Implications of the Signing
Accounting for Gallen’s $22.025 million salary agreement, the Diamondbacks’ projected payroll for 2026 would sit near $194 million, roughly matching their 2025 opening payroll of $195 million. Though Kendrick previously indicated the team would not replicate last year’s payroll, the deferral structure lessens immediate spending pressure, limiting actual 2026 payments to about $8 million.
By re-signing their own qualified free agent, Arizona avoids surrendering any current draft picks, an advantage over other teams that would lose draft choices or international spending slots to acquire Gallen. The team forfeits the possibility of compensatory draft selections resulting from Gallen signing elsewhere, which would have been around the 73rd or 74th overall pick in 2026 given his contract size. This trade-off appears minor compared to the value of retaining a potential middle-of-the-rotation starter at a reasonable cost.
Gallen’s Free Agency and Market Realities
Although re-signing in Arizona was reportedly Gallen’s top preference, as noted by Jon Heyman of The New York Post, the broader market did not develop as he may have expected. Early offseason projections, such as a four-year, $80 million deal forecasted by MLB Trade Rumors, failed to materialize after his down year.
The deferred payments reduce the present-day earnings Gallen receives compared to the full salary upfront had he accepted the qualifying offer. John Gambadoro of Arizona Sports estimates the net present value for competitive balance tax purposes to be in the $12-13 million range, illustrating a significant difference between the immediate value of the qualifying offer and the current contract—even if it preserves long-term earnings.
Next Steps and Gallen’s Outlook for 2026
Gallen agreed to terms shortly before spring training began and is expected to complete his physical soon. He should be ready for full squad workouts and is projected to contribute from Opening Day. His swift agreement contrasts with former teammate Jordan Montgomery’s prolonged free agency in 2024, which ended with Montgomery joining Texas on a modest deal after criticizing agency negotiations.
Looking beyond 2026, Gallen remains well positioned to re-enter free agency at age 31 without draft-pick compensation constraints. Players represented by the Boras Corporation such as Blake Snell, Cody Bellinger, Pete Alonso, and Matt Chapman experienced disappointing free-agent markets at one point but secured lucrative contracts by rebounding afterward. Gallen’s ability to replicate or improve upon his strong 2022-24 performance—a 3.20 ERA and 26% strikeout rate over 93 starts—will be crucial for such an outcome.
For now, Gallen’s focus will be on helping the Diamondbacks compete in the fiercely contested National League West. As the last unsigned qualified free agent and one of the few remaining significant players available, his signing may mark the end of major free-agent acquisitions this offseason. Other notable remaining free agents include Lucas Giolito, Max Scherzer, Zack Littell, and Griffin Canning.
Insider Reports and Sources Confirm Deal Details
Steve Gilbert of MLB.com initially reported the Diamondbacks nearing an agreement with Gallen. Nick Piecoro of The Arizona Republic confirmed the contract as a one-year deal. Ken Rosenthal of The Athletic detailed the $22.025 million guarantee and approximately $14 million in deferred payments. John Gambadoro provided further specifics on the timing of the deferrals, painting a comprehensive picture of the contract structure.
Gallen had multiyear offers but preferred to stay in Arizona
— Jon Heyman (@JonHeyman) February 14, 2026
The present day value of Zac Gallens contract will come in around $12-13 million for competitive balance purposes.
— John Gambadoro (@Gambo987) February 14, 2026
Hearing that the @Dbacks are closing in on a deal to bring Zac Gallen back to Arizona.
— Steve Gilbert (@SteveGilbertMLB) February 14, 2026
Can confirm. Told this is a one-year deal. Pending a physical. https://t.co/490f2L3ww1
— Nick Piecoro (@nickpiecoro) February 14, 2026
Deal is for $22.025M, value of qualifying offer Gallen rejected, per source.
— Ken Rosenthal (@Ken_Rosenthal) February 14, 2026
Of the $22.025M, approximately $14M is deferred, per source.
— Ken Rosenthal (@Ken_Rosenthal) February 14, 2026
