The Angels recalled Mederos from Triple-A Salt Lake on Tuesday.

Mederos will start Tuesday versus the Dodgers after Tyler Anderson, who was initially slated to start for the Halos, was scratched due to a back injury. In a corresponding move, Shaun Anderson was designated for assignment.

The Astros reinstated Dubin (forearm) from the 15-day injured list Tuesday.

The right-hander has been sidelined nearly two months due to a forearm strain but is ready to rejoin the active roster after a five-appearance rehab assignment. Dubin had a 1.33 ERA and six holds in 18 appearances this season prior to the injury, and he should at least be in the setup mix for Houston with closer Josh Hader (shoulder) landing on the injured list.

Harvey was diagnosed with a Grade 2 adductor strain and received an injection Tuesday, Anne Rogers of MLB.com reports.

Manager Matt Quatraro said Tuesday that Harvey is expected to miss a significant amount of time, but the team still believes he could pitch again before the end of the season. A clearer timeline for his return will likely emerge whenever he's cleared to begin a throwing program.

The White Sox optioned Peguero to Triple-A Charlotte on Tuesday.

The right-hander was promoted Sunday after being claimed off waivers from the Brewers, and he allowed an earned run over 1.2 frames in his lone outing while up with the White Sox. Peguero had a 2.98 ERA with two saves and 11 holds across 51.1 innings for Milwaukee during the 2024 regular season, but he's made just seven appearances in the big leagues this year.

The White Sox selected Gomez's contract from Triple-A Charlotte, and he's scheduled to start Tuesday's game against the Tigers.

The right-hander spent time with the White Sox, Dodgers and Yankees early in the season and had a 6.62 ERA and 13:13 K:BB across 17.2 relief innings, and he's worked as a starter at Charlotte for the past few months. Gomez has excelled in that role at Triple-A and has a 2.12 ERA, 1.28 WHIP and 64:21 K:BB over 46.2 innings, so Chicago will now give him his first start in the majors.

The Astros placed Hader on the 15-day injured list Tuesday, retroactive to Aug. 11, due to a left shoulder strain.

The All-Star closer was unavailable for the save Monday against the Red Sox due to left shoulder discomfort, and he's now been diagnosed with a strain. Hader will be eligible to be reinstated Aug. 26, though he's without an official timeline for his return since a recovery timetable has yet to be announced. Enyel De Los Santos and Bennett Sousa combined to handle the ninth inning Monday, but setup man Bryan Abreu is the likely favorite to fill in as Houston's closer.

Interim manager Tony Mansolino announced Tuesday that Bautista (shoulder) will miss the rest of the 2025 season, Matt Weyrich of The Baltimore Sun reports.

The right-hander was diagnosed with swelling in his shoulder after landing on the injured list in late July, which is significant enough to sideline him for the rest of the campaign. Bautista is without an official timeline for his return, but that could come into focus once he's further evaluated later this week. Keegan Akin has received the first look as Baltimore's new closer, going 2-for-3 in save chances since Bautista went down.

The Mariners claimed Gonzalez off waivers and optioned him to Triple-A Tacoma on Tuesday.

The right-hander was designated for assignment by Atlanta over the weekend but will retain a place on a 40-man roster with Seattle. Prior to the transaction, Gonzalez had spent the full season at Triple-A Gwinnett and had a 3.95 ERA, 1.37 WHIP and 39:19 K:BB across 41 innings.

Fairbanks earned a save against the Athletics on Monday, allowing one hit and striking out one batter over one scoreless inning.

Fairbanks had a relatively easy path to a save, as he entered with a three-run lead in the ninth frame. The right-hander gave up a leadoff double but then settled in and retired the next three batters. Fairbanks has now reached 20 saves in each of his past three campaigns, and he has an excellent shot at exceeding his career-best mark of 25 regular-season saves, which he recorded in 2023.

Sousa picked up the save in Monday's 7-6 win over the Red Sox. He allowed no hits or walks while striking out the lone batter he faced.

Sousa needed just four pitches to secure his fourth save of the season Monday, taking over for Enyel De Los Santos with one out left in the ninth inning and striking out Roman Anthony to end the game. The left-handed reliever isn't expected to handle closing duties on a regular basis but stepped in with Josh Hader temporarily unavailable due to left shoulder discomfort.