Mattson (3-1) allowed two hits and struck out three across two scoreless innings to earn the win Wednesday against the Giants.
Mattson covered the ninth and 10th innings to earn the win and managed to strike out the final two batters of the game with runners at second and third. He's struck out 14 batters across his last 10.2 innings while allowing only three earned runs and has begun to be trusted in higher-leverage spots. As a result, Mattson has emerged as a name to keep in mind for save chances if both David Bednar and Dennis Santana get traded prior to Thursday's deadline.
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Pirates' Isaac Mattson: Solid in high-leverage spot
Rotowire
Mattson allowed one hit and struck out three across 1.2 scoreless innings to earn a hold Monday against the Brewers.
The Pirates deployed a bullpen approach Monday, and Mattson was tasked with holding the lead in the seventh and eighth innings. He faced the top five hitters in the Brewers' order and allowed only a single to William Contreras. Mattson could be a candidate to see more consistent high-leverage spots moving forward, as he delivered a 9:2 K:BB across 10.1 innings while allowing only two earned runs with a 0.58 WHIP since being recalled June 7.
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Pirates' Isaac Mattson: Recalled by Pittsburgh
Rotowire
The Pirates recalled Mattson from Triple-A Indianapolis on Saturday.
Mattson has appeared in three games for the Pirates this season, but he has spent most of the year in Triple-A, where he has a 2.42 ERA, 0.95 WHIP, four saves and a 27:6 K:BB across 22.1 innings. He'll take the spot in the Pirates' bullpen vacated by Joey Wentz, who was designated for assignment in a corresponding move.
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Pirates' Isaac Mattson: Optioned to Triple-A
Rotowire
The Pirates optioned Mattson to Triple-A Indianapolis on Monday, Noah Hiles of the Pittsburgh Post-Gazette reports.
The move makes room on the 26-man roster for Braxton Ashcraft, who was recalled from Triple-A on Monday. Mattson appeared in three major-league games for the Pirates since being promoted to the majors this past Tuesday and allowed one run on one hit and one walk while striking out four across three innings. He'll head back to Triple-A, where he has a 2.33 ERA, 0.94 WHIP, four saves and a 24:5 K:BB across 19.1 innings.
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Pirates' Isaac Mattson: Promoted Tuesday
Rotowire
The Pirates selected Mattson from Triple-A Indianapolis on Tuesday.
The right-hander will take the roster spot of Colin Holderman, who was placed on the injured list Tuesday due to a thumb injury. Mattson gave up three earned runs in 5.1 frames with Pittsburgh last year and has a 2.33 ERA, 0.94 WHIP and 24:5 K:BB over 19.1 innings this season with Indianapolis.
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Pirates' Isaac Mattson: Selected from Triple-A
Rotowire
The Pirates selected Mattson was selected from Triple-A Indianapolis on Thursday, Noah Hiles of the Pittsburgh Post-Gazette reports.
Mattson signed a minor-league contract with the Pirates in December and has been through Double-A and Triple-A during 2024. He has appeared in 30 games for Triple-A Indianapolis, notching a 3.19 ERA across 62.0 innings. The 29-year-old made his last and only MLB appearances in 2021 for Baltimore, where he allowed three earned runs in 4.1 innings. In a corresponding move, Jake Woodford was designated for assignment Thursday.
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Pirates' Isaac Mattson: Heads to Pirates on MiLB deal
Rotowire
Mattson signed a minor-league contract with the Pirates on Dec. 11.
Mattson, 28, began the 2023 season in the independent Atlantic League before inking a minor-league deal with the Twins in June. He went on to register a 3.62 ERA, 1.21 WHIP and 42:24 K:BB over 32.1 innings for Double-A Wichita and will likely open the 2024 campaign with the Double-A affiliate of the Pirates in Altoona.
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Orioles' Isaac Mattson: Healthy at Triple-A
Rotowire
Mattson (shoulder) has made three relief appearances for Triple-A Norfolk this season, covering three no-hit scoreless innings while striking out three and issuing one walk.
Mattson dealt with a sore right shoulder in spring training, which closed the door on any outside chance he had for making the Orioles' Opening Day roster. After being outrighted off the 40-man roster April 8, Mattson will face an even tougher time making it back in the big leagues even though he's now healthy again.
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Orioles' Isaac Mattson: Outrighted to Triple-A
Rotowire
Mattson (shoulder) cleared waivers and was outrighted to Triple-A Norfolk on Friday, Roch Kubatko of MASNSports.com reports.
Mattson was optioned to Norfolk earlier this week and has now lost his spot on Baltimore's 40-man roster. He entered spring training behind schedule due to shoulder soreness, and it's unclear when he's expected to be ready for game action.
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Orioles' Isaac Mattson: Sent to Triple-A
Rotowire
Mattson (shoulder) was optioned to Triple-A Norfolk on Wednesday, Zachary Silver of MLB.com reports.
Mattson was a month behind schedule entering spring training due to shoulder soreness and will begin the campaign in the minors. He didn't appear in any Grapefruit League games but could see action for Norfolk in the near future.
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Orioles' Isaac Mattson: Recalled by Orioles
Rotowire
Mattson was recalled from Triple-A Norfolk on Friday.
Mattson has made three major-league appearances this season, allowing three runs on three hits in three innings of work, striking out three batters while walking four. Alexander Wells was optioned to clear space on the roster.
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Orioles' Isaac Mattson: Sent to Triple-A
Rotowire
Mattson was optioned to Triple-A Norfolk on Sunday.
The right-hander was promoted Wednesday and will return to Norfolk after delivering 1.1 scoreless frames in his lone appearance. Mattson has struggled through 11 outings at Triple-A this season with eight runs allowed on 16 hits.
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Orioles' Isaac Mattson: Recalled by Baltimore
Rotowire
Mattson was recalled from Triple-A Norfolk on Wednesday.
The right-hander made his big-league debut for the Orioles in early May and and will rejoin the team Wednesday. Mattson has struggled at Triple-A this season with a 8.64 ERA and 2.35 WHIP across 8.1 innings.
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Orioles' Isaac Mattson: Sent down by Orioles
Rotowire
Mattson was optioned to Triple-A Norfolk on Friday, Roch Kubatko of MASNSports.com reports.
Mattson made his major-league debut in the ninth inning of Friday's loss to the Red Sox and allowed one run on a hit and a walk in two-thirds of an inning. He'll now head back to Triple-A to make room for left-hander Zac Lowther, who will be called up ahead of his scheduled start Saturday.
