Isaac Mattson Injury News & Updates
Keep up with the latest injuries from the Pirates vs Orioles game on Feb 21, 2026 with our Major League Baseball injury report.Jul 19, 2022
Time's up in Baltimore organization
The Orioles released Mattson on Monday.
ANALYSIS
Mattson reached the majors for the first time in 2021 and made four appearances out of the Baltimore bullpen, but he was outrighted off the 40-man roster in the spring and had pitched exclusively at Triple-A Norfolk this season. Over his 17.2 innings with Norfolk, Mattson turned in a 6.62 ERA, 1.81 WHIP and 14:20 K:BB.
Apr 20, 2022
Healthy at Triple-A
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.
ANALYSIS
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.
Apr 8, 2022
Outrighted to Triple-A
Mattson (shoulder) cleared waivers and was outrighted to Triple-A Norfolk on Friday, Roch Kubatko of MASNSports.com reports.
ANALYSIS
Mattson was optioned to Norfolk 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.
Apr 6, 2022
Sent to Triple-A
Mattson (shoulder) was optioned to Triple-A Norfolk on Wednesday, Zachary Silver of MLB.com reports.
ANALYSIS
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.
Mar 15, 2022
Delayed by sore shoulder
Mattson is a month behind schedule due to shoulder soreness, Roch Kubatko of MASNSports.com reports.
ANALYSIS
Mattson isn't expected to get on a mound until April and will still have weeks of buildup to do at that point. The 26-year-old made his big-league debut last season but threw just 4.1 innings, so he's not necessarily in line for a significant role once he gets healthy.
Oct 1, 2021
Recalled by Orioles
Mattson was recalled from Triple-A Norfolk on Friday.
ANALYSIS
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.
Aug 20, 2021
Dealing with shoulder injury
Mattson was placed on the 7-day minor-league injured list due to right shoulder soreness Friday, Roch Kubatko of MASNSports.com reports.
ANALYSIS
Mattson last pitched at Triple-A Norfolk on Aug. 13, when he struck out two in two perfect innings to earn a save. The severity of the injury isn't yet clear, but he'll miss at least a week while he recovers.
Aug 12, 2021
Sent to Triple-A
Mattson was optioned to Triple-A Norfolk following Wednesday's loss to the Tigers, Dan Connolly of The Athletic reports.
ANALYSIS
Mattson was promoted by the Orioles over the weekend and made one appearance during his brief time with the team, allowing two runs on two hits with two strikeouts and two walks in one inning. The 26-year-old will return to Norfolk, where he's surrendered 12 runs on 22 hits across 11.1 innings.
Aug 7, 2021
Recalled Saturday
Mattson was recalled from Triple-A Norfolk on Saturday.
ANALYSIS
Mattson spent just over a month with the Triple-A club, and he's allowed five runs (four earned) on six hits and three walks while striking out five in three innings since his demotion. He's made two relief appearances in the majors during low-leverage situations this year, and he'll play a similar role after right-hander Conner Greene was designated for assignment.
Jul 4, 2021
Sent to Triple-A
Mattson was optioned to Triple-A Norfolk on Sunday.
ANALYSIS
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.
Jun 30, 2021
Recalled by Baltimore
Mattson was recalled from Triple-A Norfolk on Wednesday.
ANALYSIS
The right-hander made his big-league debut for the Orioles in early May and and will rejoin the team Tuesday giving up a run on a hit and a walk over two-thirds of an inning. Mattson has struggled at Triple-A this season with a 8.64 ERA and 2.35 WHIP across 8.1 innings.
May 8, 2021
Sent down by Orioles
Mattson was optioned to Triple-A Norfolk on Friday, Roch Kubatko of MASNSports.com reports.
ANALYSIS
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.
May 3, 2021
Promoted to big leagues
Mattson was recalled Monday, Roch Kubatko of MASNSports.com reports.
ANALYSIS
Mattson hasn't pitched in an official minor-league contest since the 2019 campaign when he spent most of his time at Double-A Mobile. He cruised to a 2.68 ERA and 1.00 WHIP with a 61:13 K:BB over 43.2 frames while with the Bears.
Nov 20, 2020
Added to 40-man roster
Mattson's contract was purchased by the Orioles on Friday, Joe Trezza of MLB.com reports.
ANALYSIS
One of the pitching prospects that Baltimore received from the Angels in last offseason's Dylan Bundy trade, Mattson spent the summer at the alternate training site. He is a relief pitcher and struck out 19 in 9.1 innings at Triple-A in 2019, so he could eventually work in high-leverage situations.
Jul 10, 2020
Joins player pool
Mattson was added to the Orioles' 60-man player pool Friday, Roch Kubatko of MASNSports.com reports.
ANALYSIS
Mattson will give the Orioles' additional pitching depth, but he's not on the team's 40-man roster, so he shouldn't be expected to fill a large role. He's only thrown 9.1 innings at the Triple-A level, though he did strike out 19 batters over that brief stretch, hinting at his potential.
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