Angels' Rotation Crumbles: Kochanowicz Down, Aldegheri Up, and the Pitching Depth Crisis Accelerates

The Angels placed right-hander Jack Kochanowicz on the 15-day injured list Sunday with right elbow inflammation, marking the latest blow to a rotation that has been one of baseball's weakest this season. Kochanowicz, who has battled mechanical issues throughout his 13 starts, informed reporters his elbow had been bothering him for the past three starts before the decision to shut him down. He'll undergo an MRI on Monday to determine the full extent of the injury.

Kochanowicz's departure exposes just how fragile Los Angeles' pitching depth truly is. José Soriano (2.72 ERA in 76 innings) has cooled considerably after a hot start. Reid Detmers carries a 4.26 ERA despite advanced metrics suggesting underlying competence. Rookie Walbert Ureña posted a 2.68 ERA but his 4.53 SIERA—inflated by an elevated walk rate—signals vulnerability. Grayson Rodriguez has hemorrhaged runs (19 earned in 18 innings) since returning from injury. Yusei Kikuchi won't resurface until late July at the earliest. The Angels had only four confirmed starters before Kochanowicz's IL move, and even that count overstates the reliability of their current arsenal.

Sam Aldegheri, recalled from Triple-A to fill the roster spot, arrives with a 5.26 ERA across 37⅔ big league innings since 2024 and a 7.24 ERA in 46 Triple-A innings this season. He figures as a short-term long reliever, though the Angels may shuffle rotation duties among Triple-A options Caden Dana and George Klassen if the elbow proves more serious. Neither prospect has performed well at the minor league level this year despite encouraging ground ball rates, suggesting limited immediate upside for internal saves.

For bettors, the Angels' rotation deterioration is a directional signal: team totals should face downward pressure going forward, particularly in the next two weeks while Kochanowicz is sidelined and the replacement pitcher—whether Aldegheri, Dana, or Klassen—acclimate to major league hitters. The club already ranked among the weakest in run production; now their pitching staff has even fewer guardrails against blowouts. Any game where Los Angeles doesn't feature Soriano or Ureña carries elevated risk on the over, as spotty bullpen deployment and replacement-level rotation performance can compress offensive opportunity for the opposition as well. Conversely, unders on Angels team totals in games featuring rotating fourth-starters deserve scrutiny, as the quality of pitching support—or lack thereof—may depress run output from an already-struggling lineup.