Merrill Kelly Returns to Arizona Diamondbacks on Two-Year Deal

Merrill Kelly, a veteran right-handed pitcher, has rejoined the Arizona Diamondbacks after a brief stint with the Texas Rangers. The Diamondbacks confirmed that Kelly has signed a two-year contract worth $40 million, as reported by Ken Rosenthal of The Athletic. This move marks a significant reunion for Kelly, who spent nearly seven seasons with Arizona before being traded to Texas at the 2025 trade deadline.

Diamondbacks signing starting pitcher Merrill KellyMerrill Kelly returns to Diamondbacks on $40 million contractSports IllustratedReport: Merrill Kelly returns to Diamondbacks on two-year, $40M dealArizona RepublicHeavy

During the 2025 season, Kelly showcased his capabilities as a reliable starter, logging a combined 3.52 ERA over 32 starts and 184 innings pitched. His performance included a strong first half with the Diamondbacks, where he posted a 3.22 ERA in 22 games. However, after the trade, his ERA rose to 4.23 with the Rangers, reflecting some struggles in the latter part of the season. Despite these fluctuations, Kelly has established himself as a consistent pitcher, ranking 19th in the majors in innings pitched since 2019.

New York TimesReport: Merrill Kelly returns to Diamondbacks on two-year, $40M dealReports: Kelly, Diamondbacks agree to two-year, $40M dealHeavyDiamondbacks signing starting pitcher Merrill KellySports Illustrated

Kelly's journey to the MLB was unconventional; he spent four years in the Korean Baseball Organization before making his debut at age 30. Over his career, he has maintained a 3.77 ERA and has been known for his ability to pitch deep into games, having made at least 27 starts in five of his six full seasons in the majors.

New York Times

The Diamondbacks' decision to bring back Kelly is seen as a strategic move to bolster their starting rotation, which now includes Kelly, Ryne Nelson, Brandon Pfaadt, Eduardo Rodriguez, and Michael Soroka. General Manager Mike Hazen emphasized the team's need for experienced pitching, and Kelly's return addresses that requirement. His presence is expected to stabilize the rotation while younger pitchers continue to develop.

Heavy

While the Diamondbacks have not officially commented on the specifics of Kelly's contract, the mutual interest in a reunion was evident. Kelly had previously expressed his desire to return to Arizona, stating, "I would love for that to be here in Arizona," highlighting his fondness for the team and the community.

Diamondbacks signing starting pitcher Merrill Kelly

Some analysts have raised concerns about Kelly's age, as he will be 37 in 2026, and whether he can maintain his performance level. However, others argue that his experience and consistency make him a valuable asset for the Diamondbacks as they aim for a competitive season.

Heavy

With Kelly's signing, the Diamondbacks are expected to finalize their rotation for the upcoming season. The team is also rumored to be exploring the trade market for other players, including Ketel Marte, as they look to optimize their roster for a return to postseason contention.

Arizona Republic

• “Zoom out nationally, and this move reflects a broader trend of contenders paying for certainty rather than youth and upside.” — Analyst Commentary

Merrill Kelly signs with Diamondbacks, Arizona brings back fan-favorite

Merrill Kelly's return to the Diamondbacks not only signifies a reunion with a familiar face but also represents a strategic investment in the team's pitching depth as they prepare for the 2026 season.

Sports Illustrated