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Juan Morillo RP | ARI
Diamondbacks' Juan Morillo: Secures second save
Morillo worked a perfect ninth inning Wednesday to record his second save of the season in a 2-0 win over the Cubs. He didn't strike out a batter.
Kevin Ginkel had pitched the prior two days and Brandyn Garcia handled the eighth inning, so Morillo was summoned in the ninth and got the job done on an efficient eight pitches (seven strikes). The closer situation for Arizona remains murky, with all three of those pitchers having now recorded saves in August while Justin Martinez is also likely to work into the mix after making his 2026 debut last week. Morillo's making a strong case for regular high-leverage work, however -- his other save this season came back in April, but he hasn't been tagged for a run since July 17, reeling off 14 straight scoreless appearances with a 0.79 WHIP and 14:3 K:BB in 14 innings while picking up one win and seven holds.
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Luis Perales RP | WAS
Nationals' Luis Perales: Joins big club
The Nationals recalled Perales from Triple-A Rochester on Wednesday.
Perales will get his first taste of the big leagues after he submitted a 3.64 ERA, 1.30 WHIP and 97:55 K:BB while holding opposing hitters to a .199 average across 96.1 innings in his 25 appearances (19 starts) with Rochester. The 23-year-old righty made his final three appearances at Triple-A as a reliever and will work out of the bullpen to begin his time with Washington. He could be called upon to cover multiple frames in relief Wednesday against the Rockies, as starter Matt Waldron isn't fully stretched out and could be operating as a glorified opener.
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Jeremiah Estrada RP | SD
Padres' Jeremiah Estrada: Shelved by shoulder impingement
The Padres placed Estrada on the 15-day injured list Wednesday due to a right shoulder impingement.
Estrada will head to the IL for the third time this season after previously missing action due to elbow and knee issues. When healthy, he's logged a 3.48 ERA and 38:16 K:BB over 31 frames this season. It's unclear how long Estrada's absence will last.
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Cade Gibson RP | MIA
Marlins' Cade Gibson: Dispatched to Triple-A
The Marlins optioned Gibson to Triple-A Jacksonville on Wednesday.
Gibson will head back to the minors after he yielded runs in five of his last six appearances while turning in a 7.36 ERA, 1.64 WHIP and 6:5 K:BB in 7.1 innings during that stretch. The Marlins called up lefty Patrick Monteverde from Triple-A to take Gibson's spot in the bullpen.
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Pat Monteverde RP | MIA
Marlins' Patrick Monteverde: Joining big-league roster
The Marlins selected Monteverde's contract from Triple-A Jacksonville on Wednesday.
He'll join the Miami bullpen as a replacement for left-hander Cade Gibson, who was optioned to Triple-A. Monteverde made his big-league debut last season, giving up four earned runs over 3.2 innings in his lone appearance before being designated for assignment and clearing waivers. He's spent the entire 2026 campaign to date at Jacksonville, recording a 5.84 ERA, 1.49 WHIP and 66:38 K:BB in 91 innings over 23 appearances (18 starts).
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Braxton Roxby RP | SF
Giants' Braxton Roxby: Receives first big-league call-up
The Giants selected Roxby's contract from Triple-A Sacramento on Wednesday.
Roxby will head to the big leagues for the first time after submitting a 4.11 ERA, 1.18 WHIP and 53:26 K:BB over 57 innings across 36 relief appearances with Sacramento. He'll provide the Giants with a multi-inning option out of the bullpen after the pitching staff had seen its depth get thinned over the past few days with all of Carson Whisenhunt (elbow), Adrian Houser (forearm) and JT Brubaker (ribs) landing on the injured list.
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Ricky Vanasco RP | ATL
Braves' Ricky Vanasco: Claimed by Atlanta off waivers
Atlanta claimed Vanasco off waivers from the Tigers on Wednesday and optioned him to Triple-A Gwinnett.
Vanasco was designated for assignment by the Tigers earlier this week, but he will now join Atlanta's 40-man roster. The right-handed reliever has allowed 12 runs (11 earned) with a 4:6 K:BB over 6.1 innings in the majors this season, but he's been much more effective at Triple-A Toledo with a 2.53 ERA and 59:24 K:BB in 46.1 frames.
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Ben Brown RP | CHC
Cubs' Ben Brown: Suffers setback with neck injury
Cubs manager Craig Counsell said Wednesday that Brown (neck) suffered a setback during his live batting practice session Tuesday, Meghan Montemurro of the Chicago Tribune reports.
Working his way back from a stress reaction in his neck, Brown began feeling discomfort in his neck toward the end of the session, and the pain worsened as the day moved along. He is headed back to Chicago to be evaluated and is "gonna slow it down in some way," per Counsell. Brown hasn't pitched in a game since late June, and he now looks like a long shot to make it back before the end of the season.
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Nick Pivetta SP | SD
Padres' Nick Pivetta: Works three innings in rehab start
Pivetta (forearm) struck out four and allowed three earned runs on four hits and one walk in three innings Tuesday in a rehab start with Single-A Lake Elsinore.
After a three-week hiatus following a setback with his right forearm, Pivetta resumed his minor-league rehab assignment and made a second start with Lake Elsinore. Though his command was lacking while he allowed three extra-base hits -- including two home runs -- on the night, Pivetta was at least able to pound the strike zone (35 strikes on 47 pitches). Pivetta will need at least one more rehab start to continue building up his pitch count before the Padres consider bringing him back from the 60-day injured list and inserting him into the rotation. The veteran righty has been on the shelf since April 14.