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Red Sox lefty Zach Penrod underwent an MRI due to an elbow issue recently, and manager Alex Cora provided an update to reporters (including MassLive’s Chris Cotillo) today on Penrod’s status. While the MRI revealed no structural damage and only elbow inflammation, Cora acknowledged that he’s been shut down for the time being and that Penrod will “be out for a while” even though surgery is not currently on the table.
It’s surely a frustrating development for the 27-year-old rookie, who made his debut near the end of the 2024 season with a 2.25 ERA in seven relief outings. Penrod briefly pitched for the Rangers in rookie ball but spent most of his professional career to this point in indy ball before getting picked up by the Red Sox partway through the 2023 campaign. He dominated Double-A pitching last year but hit something of a wall at Triple-A with a 5.93 ERA in 27 1/3 innings of work across 15 starts. That didn’t stop the Red Sox from giving Penrod a September call-up last year, but despite his solid ERA in the majors he did struggle with more walks (4) than strikeouts (3) at the highest level.
Even so, Penrod appeared likely to be the club’s top lefty depth option entering 2025 behind the trio of southpaws locked into the Opening Day bullpen. Offseason additions Aroldis Chapman and Justin Wilson figure to join Brennan Bernadino on the club’s Opening Day roster to give batters a different look than the rest of the club’s pitching staff, which is dominated by right-handers with ace Garrett Crochet as the only other lefty. Outside of Penrod, all of the club’s minor league depth on the 40-man roster is right-handed, though injured players Patrick Sandoval and Chris Murphy as well as non-roster veteran Matt Moore all pitch left-handed and could help to balance out the roster’s handedness at some point.
It’s not entirely clear how long Penrod is slated to miss, but Cotillo notes that the expectation at the moment is that Penrod won’t be returning to the mound “anytime soon.” That suggests a lengthy rehab process, and given the risks associated with elbow issues it shouldn’t be a surprise if the club is extremely cautious with Penrod as they look to avoid aggravating his ailing elbow to the point where surgery is necessary. Given that, MLB.com notes that Penrod won’t be returning until at some point in May at the earliest, though even that timeline could be an aggressive estimate and it wouldn’t be unusual for Penrod to miss several months due to the ailment.
