August 19, 2025 7:02 PM : The Cubs optioned Cosgrove to Triple-A Iowa on Tuesday.
Analysis: The left-hander was called up ahead of Game 1 of Tuesday's doubleheader and will return to the minors after not appearing in the matinee. Cosgrove has made just two appearances in the majors this season and has a 4.66 ERA across 38.2 relief innings at Triple-A.