The Cubs outrighted Cosgrove to Triple-A Iowa on Wednesday.
He's no longer on the 40-man roster, but Cosgrove will remain in the organization after passing through waivers unclaimed. The lefty reliever has spent most of 2025 at Iowa, holding a 4.71 ERA, 1.60 WHIP and 51:25 K:BB over 42 innings.
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Cubs' Tom Cosgrove: Pushed off 40-man roster
Rotowire
The Cubs designated Cosgrove for assignment Sunday.
Cosgrove will give up his spot on the 40-man roster to right-hander Aaron Civale, whom the Cubs claimed off waivers from the White Sox on Sunday. Before being optioned to Triple-A Iowa on Aug. 19, Cosgrove made two relief appearances for the Cubs this season, giving up one earned run on three hits and one walk over four innings. His results over a larger sample of 42 innings at Iowa were far less impressive (4.71 ERA, 1.60 WHIP, 51:25 K:BB), however, and the 29-year-old lefty could go unclaimed off waivers as a result.
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Cubs' Tom Cosgrove: Returns to Triple-A
Rotowire
The Cubs optioned Cosgrove to Triple-A Iowa on Tuesday.
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.
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Cubs' Tom Cosgrove: Joins big club for doubleheader
Rotowire
The Cubs recalled Cosgrove from Triple-A Iowa on Tuesday, Maddie Lee of the Chicago Sun-Times reports.
Cosgrove will join the Cubs ahead of Tuesday's doubleheader with the Brewers, though it's unclear if he or another player will be sent back to Iowa once the twin bill concludes and Chicago needs to reduce its active roster to 26 men. The 29-year-old southpaw reliever has made just two appearances in the majors this season but has seen ample usage for Iowa, logging a 4.66 ERA and 1.65 WHIP while striking out 47 batters across 38.2 innings over 33 outings.
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Cubs' Tom Cosgrove: Sent back to minors
Rotowire
The Cubs optioned Cosgrove to Triple-A Iowa on Saturday, Taylor McGregor of Marquee Sports Network reports.
Cosgrove was brought up from the minors Friday to replace Caleb Thielbar (paternity) but will now head back to Iowa to clear space on the active roster for Cade Horton. Cosgrove has given up just one run in four innings with the Cubs this season and is a candidate to return to Chicago later in the year whenever the big club needs a fresh bullpen arm.
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Cubs' Tom Cosgrove: Recalled from Triple-A
Rotowire
The Cubs recalled Cosgrove from Triple-A Iowa on Friday, Maddie Lee of the Chicago Sun-Times reports.
Cosgrove takes the roster spot of Caleb Thielbar, who was placed on the paternity list Friday. Cosgrove appeared in one game for the Cubs earlier this season, tossing two scoreless innings of relief, striking out a pair and walking one.
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Cubs' Tom Cosgrove: Optioned to Triple-A
Rotowire
The Cubs optioned Cosgrove to Triple-A Iowa on Wednesday, Taylor McGregor of Marquee Sports Network reports.
Cosgrove made one appearance during his brief time with the Cubs, tossing two scoreless innings. His roster spot is being absorbed by Chris Flexen.
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Cubs' Tom Cosgrove: Recalled by Cubs
Rotowire
The Cubs recalled Cosgrove from Triple-A Iowa on Sunday.
Cosgrove started the season with the Padres but was traded to the Cubs on April 10. He tossed four scoreless innings in Triple-A while logging seven strikeouts, and he'll move to the majors to provide left-handed depth out of the Cubs' bullpen. Ethan Roberts was optioned to Iowa in a corresponding move.
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Cubs' Tom Cosgrove: Gets new opportunity
Rotowire
Cosgrove was traded from the Padres to the Cubs on Thursday, Andy Martinez of Marquee Sports Network reports.
Cosgrove was designated for assignment by the Padres on Sunday but will now offer the Cubs bullpen depth. He has pitched primarily in the minors throughout his career, though he has maintained a 3.95 ERA and 1.20 WHIP across 66 big-league frames.
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Padres' Tom Cosgrove: Pushed off 40-man roster
Rotowire
The Padres designated Cosgrove for assignment Sunday.
Cosgrove was pushed off the 40-man roster to make room for right-hander Logan Gillaspie, who had his contract selected from Triple-A El Paso prior to Sunday's game against the Cubs. After turning in a 11.66 ERA and 1.98 WHIP over 14.2 regular-season innings at the big-league level in 2024, Cosgrove didn't make much of a claim for a spot in the Padres' Opening Day bullpen this spring and struggled over his first four relief outings with El Paso, giving up three earned runs on four hits and four walks over 3.2 innings.
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Padres' Tom Cosgrove: Returns to El Paso
Rotowire
The Padres optioned Cosgrove to Triple-A El Paso on Saturday.
Cosgrove came up from the minors Wednesday as a roster replacement for Martin Perez (paternity), and he'll head back to Triple-A now that Perez has returned. The 28-year-old Cosgrove didn't appear in a game during his three-day stint in the big leagues.
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Padres' Tom Cosgrove: Set to be recalled Sunday
Rotowire
The Padres are expected to recall Cosgrove from Triple-A El Paso on Sunday, Kevin Acee of The San Diego Union-Tribune reports.
Cosgrove is expected to provide coverage for the Padres bullpen while Wandy Peralta (thigh) and Stephen Kolek (forearm) continue to work through their respective injuries. Cosgrove has an 11.66 ERA and 1.98 WHIP across 14.2 major-league innings this season.
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Padres' Tom Cosgrove: Activated and optioned
Rotowire
The Padres activated Cosgrove (elbow) from the 15-day injured list Thursday and optioned him to Triple-A El Paso.
Cosgrove missed nearly a month of action with left elbow inflammation but has been cleared to pitch in games again. The southpaw has battled through a dreadful 2024 campaign which has seen him cough up 19 runs over 14.2 innings during his time with the Padres.
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Padres' Tom Cosgrove: Hitting IL with elbow inflammation
Rotowire
Cosgrove was placed on the 15-day injured list Friday due to left elbow inflammation, retroactive to Thursday.
The Padres recalled Cosgrove from Triple-A on June 21, and he appeared in three games with San Diego. His most recent outing came Wednesday, when he yielded four runs and retired only one batter before being pulled. Austin Davis will take Cosgrove's place on the active roster.
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Padres' Tom Cosgrove: Recalled by San Diego
Rotowire
The Padres recalled Cosgrove from Triple-A El Paso on Friday.
The move corresponds with right-hander Adam Mazur being optioned to Triple-A El Paso. Cosgrove was optioned to Triple-A on April 30 after appearing in 15 games in the majors, registering a 10.50 ERA and 1.83 WHIP across 12 innings. He has an 8.79 ERA in the minors, though he hasn't given up a run or hit over his last seven outings, striking out seven batters over that span. Cosgrove will provide the Padres a southpaw option out of the bullpen.
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Padres' Tom Cosgrove: Sent to Triple-A
Rotowire
The Padres optioned Cosgrove to Triple-A El Paso on Tuesday.
Cosgrove heads to the minors for the first time this season. With the Padres, he has allowed 14 earned runs across 12.0 innings in 2024. Last year, the 27-year-old posted a 1.75 ERA across 51.1 innings. The southpaw will look to regather himself in El Paso and find again what he had going last year. In a corresponding move, Yu Darvish was reinstated from the 15-day injured list.
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Padres' Tom Cosgrove: Returns from IL
Rotowire
Cosgrove (hamstring) was activated from the 15-day injured list Saturday.
Cosgrove returns to action after spending the minimum 15 days on the injured list while dealing with a left hamstring strain. The southpaw has pitched well for the Padres this season, posting a minuscule 0.53 ERA and 0.53 WHIP along with a 15:2 K:BB over 17 innings. He hasn't seen much work in high-leverage spots, though, and has yet to record a hold or a save.
