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Tomoyuki Sugano SP | COL
Rockies' Tomoyuki Sugano: Loses steam in second loss
Sugano (3-2) took the loss Monday, allowing four runs on three hits and two walks over 5.1 innings against the Mets. He struck out one.
Sugano cruised through five innings before running into trouble in the sixth, allowing four runs, including a homer, and being pulled after recording just one out in the frame. After a lackluster 2025 season with the Orioles, the right-hander has put together a solid 2026 after inking a one-year deal with the Rockies in the offseason, posting a 3.41 ERA and 1.14 WHIP with a 22:11 K:BB across 37 innings (seven starts). The 36-year-old is tentatively scheduled to next pitch Sunday against the Phillies.
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David Peterson SP | CHC
Mets' David Peterson: Captures first win in bulk role
Peterson (1-4) earned the win Monday against the Rockies. He allowed two runs on three hits and no walks while striking out six over four innings.
Peterson, working behind Huascar Brazoban and Austin Warren, turned in a respectable effort in bulk relief, good enough to earn his first win of the season. The southpaw held the opposition scoreless through his first three innings before allowing a pair of runs in the seventh inning, underscoring his struggles to work deep into games and navigate a lineup multiple times. Across 34.1 innings in 2026, Peterson owns a 6.29 ERA and 1.60 WHIP with a 35:14 K:BB. The 30-year-old will look to stay in the win column in his next outing, tentatively scheduled for Sunday against the Diamondbacks, though it remains to be seen if he works behind an opener again.
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Trevor McDonald SP | SF
Giants' Trevor McDonald: Recalled ahead of Monday's start
The Giants recalled McDonald from Triple-A Sacramento ahead of his start against the Padres on Monday.
McDonald served as the Giants' 27th man for Thursday's doubleheader against the Phillies, though he went unused out of the bullpen. Southpaw reliever Erik Miller (back) was placed on the 15-day IL in a corresponding move, so Monday's outing will likely be a spot start for McDonald. The 25-year-old right-hander has appeared in five games (four starts) in Triple-A and has a 5.40 ERA and 1.53 WHIP across 15 innings.
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Jacob Misiorowski SP | MIL
Brewers' Jacob Misiorowski: Throws bullpen session
Misiorowski (hamstring) threw a bullpen session Monday, Curt Hogg of the Milwaukee Journal Sentinel reports.
Misiorowski was forced to exit his last outing Friday against the Nationals with a right hamstring cramp. All signs point to the right-hander making his next scheduled start Wednesday in St. Louis, but the Brewers will wait to see how Misiorowski bounces back from Monday's bullpen session before clearing him.
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Quinn Priester SP | MIL
Brewers' Quinn Priester: Dealing with shoulder soreness
Priester (wrist) is with the Brewers in St. Louis after being pulled from his rehab assignment due to shoulder soreness, Sophia Minnaert of Brewers.tv reports.
Priester struggled in his last rehab outing with Triple-A Nashville on Friday, when he tossed 62 pitches (37 strikes) and allowed five runs on seven hits (including one homer) and two walks while striking out one batter in just two innings. Brewers manager Pat Murphy told reporters Monday that Priester's recent setback isn't considered a long-term concern, but the 25-year-old right-hander will be reevaluated by medical staff and work with pitching coaches over the coming days to determine a more clear timeline to return.
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Hunter Brown SP | HOU
Astros' Hunter Brown: Could throw off mound this weekend
Brown (shoulder) could throw a bullpen session as soon as this weekend, Chandler Rome of The Athletic reports.
Brown resumed flat-ground throwing a little over a week ago and has pushed his distance up to 120 feet, per Matt Kawahara of the Houston Chronicle. The right-hander could take another big step in his throwing program this weekend by getting back on a mound. Brown is working his way back from a Grade 2 right shoulder strain, and the Astros have tentatively projected him to return by early- to mid-June.
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Samuel Aldegheri SP | LAA
Angels' Sam Aldegheri: Recalled by Halos
The Angels recalled Aldegheri from Triple-A Salt Lake on Monday.
Monday marks the second time this season that Aldegheri has been called up to the majors. His lone outing with the Angels this season came against the Yankees on April 16, when he allowed one earned run on two hits and one walk while striking out two across 1.2 innings. He'll replace Nick Sandlin on the 26-man active roster, the latter of whom was optioned to Salt Lake in a corresponding move.
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Trey Gibson SP | BAL
Orioles' Trey Gibson: Sent down after spot start
The Orioles optioned Gibson to Triple-A Norfolk on Monday, Jake Rill of MLB.com reports.
Gibson made his major-league debut with a spot start Sunday against the Yankees, getting charged with three runs on four hits and two walks over 4.2 innings while notching a pair of strikeouts. The right-hander's spot on the active roster will be absorbed by Lou Trivino.
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Joe Boyle SP | TB
Rays' Joe Boyle: Starting rehab assignment
Boyle (elbow) will begin a rehab assignment with Triple-A Durham on Wednesday, Marc Topkin of the Tampa Bay Times reports.
Boyle has missed more than three weeks with a right elbow strain, but he's progressed to the point that he's ready to test himself in a game setting. The right-hander made three starts for the Rays before getting hurt, posting a 5.17 ERA and 16:6 K:BB over 15.2 innings. He could be reclaim a spot in the Tampa Bay rotation if he looks sharp during his rehab assignment.
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Quinn Priester SP | MIL
Brewers' Quinn Priester: Pulled off rehab assignment
Priester (wrist) remains on the 15-day injured list after the Brewers pulled him off of his rehab assignment Monday, Curt Hogg of the Milwaukee Journal Sentinel reports.
Priester isn't believed to be dealing with any sort of setback, but the Brewers will pause his minor-league assignment after the right-hander struggled mightily during his three starts at Triple-A Nashville. He failed to record more than seven outs in any of those outings, submitting a collective 16.20 ERA, 3.00 WHIP and 5:8 K:BB across five innings. The Brewers haven't indicated that Priester will be shut down from activity, but he'll likely need to show improvement with both his velocity and command during his throwing sessions before Milwaukee restarts his rehab clock. Brandon Sproat and Logan Henderson should have longer leashes in the Milwaukee rotation while both Priester and Brandon Woodruff (shoulder) are on the IL.