The Arizona Diamondbacks' 2026 season is shrouded in uncertainty, especially when it comes to their pitching staff. Will the team's minor league signings be the key to success or a costly gamble? Let's dive into the intriguing world of GM Mike Hazen's recent acquisitions. But first, a disclaimer: the following analysis is based on the assumption that these pitchers remain healthy, a crucial factor in their potential impact.
Despite the lack of major league-level signings, Hazen has been busy bolstering the team's minor league roster. Among the signings, five pitchers stand out as potential contributors in 2026. These players, if they can stay in shape, could be the difference-makers the Diamondbacks need.
Jonathan Loáisiga, as Makakilo's writeup suggests, is a top prospect with the best odds of making a positive impact at the MLB level. His performance in the minors has been impressive, and his health will be a significant determinant of his success.
Derek Law, a reliable reliever from 2019 to 2024, had a standout season with the Nationals in 2024. However, a forearm injury in 2025 raises concerns about his ability to return to form. Can he bounce back and be a valuable asset for the Diamondbacks?
Patrick Hatch had a decent 2023 season with Toronto and Pittsburgh, but his stint in Japan was less successful. His advanced metrics suggest he wasn't as bad as his ERA indicated. After returning to the US, he struggled with the Royals and the Twins, but could he find his rhythm again in 2026?
Shawn Dubin had a solid 2024 season with the Astros, but his performance dipped in 2025. However, his strong finish with the Baltimore Orioles might be a sign of a resurgence. This signing could be a hidden gem for the Diamondbacks.
Ryan Campbell impressed in his pro debut with the Seattle Mariners, but injuries plagued his 2024 season. He spent most of 2025 in AAA, and his advanced metrics suggest he has the potential to improve. His increased velocity is a promising sign for the upcoming season.
Beyond these five, there are other pitchers who have yet to make their MLB debuts. Some have reached AAA, while others are still in AA. Players like Gerardo Carrillo, Indigo Diaz, and Junior Fernández fall into this category. Their path to the MLB level will likely depend on their performance in hitter-friendly leagues.
The Diamondbacks also acquired two pitchers through the Rule 5 draft, a process similar to minor league free agency for the AAA phase. Sean Harney, a former Tampa Bay Rays and New York Mets prospect, had a busy 2025, eventually landing with the Diamondbacks. His success in the PCL will be a key test. Antonio Menendez, another Rays prospect, showed promise in AA and AAA, but his performance dipped in his second AAA stint. Could 2026 be his breakout year?
As we look ahead to the 2026 season, the Diamondbacks' pitching staff is a fascinating puzzle. These minor league signings offer a mix of potential and uncertainty. Will they be the heroes the team needs, or will they fall short? Only time will tell, and the health of these pitchers will play a significant role in the outcome. And this is the part most fans are eagerly waiting to see unfold.
