The Arizona Diamondbacks' relief pitcher, A.J. Puk, is facing another setback as he deals with left shoulder discomfort, prompting an MRI examination. This development comes as a disappointment for the team, who had high hopes for Puk's performance after acquiring him from the Miami Marlins ahead of the 2024 trade deadline. During that period, Puk showcased his prowess with a pristine 1.32 ERA, 43 strikeouts, and just five walks over 27 1/3 innings. However, his 2025 season has been marred by injuries, with Puk only managing to pitch eight innings and making his most recent appearance on April 17, 2025. The Diamondbacks' bullpen, which includes top performers like closer Paul Sewald and Kevin Ginkel, has been a source of strength, but the absence of Puk and the recent Tommy John surgery recipient, Justin Martinez, has led to a decline in performance. With a 35-34 record and a significant deficit in the NL West, the Diamondbacks are now seeking to bolster their bullpen before the August 3 trade deadline. General Manager Mike Hazen has identified this as a critical area for improvement, and the recent shoulder issue with Puk could further accelerate their efforts to upgrade their relief corps this summer.
