The Angels announced that they have placed right-hander Jack Kochanowicz on the 15-day injured list with right elbow inflammation. Lefty Sam Aldegheri is being recalled from Triple-A in place of Kochanowicz.
Kochanowicz told reporters, including Rhett Bollinger of MLB.com, that his elbow has been bothering him in his past three starts. Kochanowicz tried to pitch through it, but he’ll now head to the IL in an attempt to fully recover. He will undergo an MRI tomorrow. Aldegheri is available out of the bullpen for now, per Bollinger, but he could slide into the rotation if needed. Caden Dana and George Klassen are other candidates for that spot.
Kochanowicz is having as good of a season as the Angels overall, which is to say not very good. The 6’7″ righty has covered 64 innings over 13 starts, recording a 6.05 ERA in the process. Kochanowicz has a 5.38 xERA, a 4.98 FIP, and a 5.00 SIERA, suggesting he’s been somewhat unlucky, but still ineffective. Indeed, manager Kurt Suzuki was non-committal about keeping Kochanowicz in the rotation before the IL placement was announced. “[We will] talk about it and see what our options are,” Suzuki told Jeff Fletcher of the Orange County Register. Fletcher also noted that Kochanowicz was experiencing mechanical issues, which can now be partly attributed to his injury.
The fact that Kochanowicz has held onto his spot for this long speaks to the Angels’ lack of rotation depth behind José Soriano and Reid Detmers. The former has cooled off after a hot start but still has a 2.72 ERA in 76 innings. Detmers has strong peripherals that suggest he’s due for improvement on his 4.26 ERA. Otherwise, rookie Walbert Ureña has a 2.68 ERA and an excellent 51.4% ground ball rate, but also a 4.53 SIERA thanks to a high walk rate. Grayson Rodriguez has allowed 19 earned runs in 18 innings since returning from injury.
Yusei Kikuchi is on the 60-day IL and won’t be back until late July at best, per the club’s official injury report. Dana and Klassen are both on the 40-man roster as depth options, and Dana was a Top-100 prospect last year according to MLB.com. However, neither Dana nor Klassen is performing well at Triple-A this year despite high ground ball rates.
Working in Kochanowicz’s favor are his own high ground ball rate (54.6% in 240 1/3 big league innings), 72nd-percentile fastball velocity, and much improved slider (-6 run value in 2025, +1 this year). Granted, the Angels are not contending and can afford to give the 25-year-old Kochanowicz plenty of leeway. Still, his ground ball rate and decent stuff are intriguing on their own, so it wouldn’t be unrealistic to see Kochanowicz back in the rotation when he returns. The Angels only have four starters at the moment per FanGraphs’ RosterResource tool, so Kochanowicz could reclaim his spot as the fifth starter.
Aldegheri returns to the Majors as a long reliever for now. He’s scattered three big league appearances around three recalls and options this year, with this move being his fourth recall. Aldegheri has a 7.24 ERA in 46 innings over nine starts at Triple-A in 2026. His big league track record consists of an uninspiring 5.26 ERA in 37 2/3 innings from 2024-26. It would not be surprising for Aldegheri to appear in one game then get optioned once again, with one of Dana or Klassen getting a temporary rotation spot with Kochanowicz out.
Photo courtesy of William Liang, Imagn Images