The Angels recalled Aldegheri from Triple-A Salt Lake on Sunday.
The move corresponds with the Angels placing right-hander Jack Kochanowicz on the 15-day injured list due to right elbow inflammation. Aldegheri has spent the majority of 2026 in Triple-A, where he has a 3-4 record in nine starts with a 7.24 ERA, 1.72 WHIP and 32:23 K:BB across 46 innings. He's appeared in three major-league games for the Angels this year, most recently working Tuesday against the Rockies and tossing 5.1 scoreless innings while allowing four hits and two walks with five strikeouts. Even with Kochanowicz shelved, Aldegheri is not guaranteed to join the rotation, with Caden Dana and George Klassen also in the mix for spot starts, per Rhett Bollinger of MLB.com.