Slaten (shoulder) has yet to play catch since being placed on the injured list Sunday, Christopher Smith of MassLive.com reports. Slaten was diagnosed with shoulder fatigue when he was placed on the injured list, so the issue didn't appear to be overly serious. However, he's likely to be sidelined until at least late June given his lack of progress.

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15-Day IL - Shoulder - Inflammation Expected Return: 2025-06-27Latest Justin Slaten news

Justin Slaten
Game Log
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Regular SeasonDateOppResultIPKBBHBPCGSHOHRER5/28L 6-50.1000001205/27L 5-11.1110000005/24W 6-51.0010001005/23W 19-50.2100001005/20W 2-01.2000000005/19W 3-11.1100000005/14L 6-51.0100000005/13L 10-91.0300000005/9L 2-11.1000000005/8W 5-01.1000000005/4L 5-41.0000003225/1L 4-21.0010003334/30L 7-60.1000001104/26W 7-31.0110000004/21W 4-21.0100000004/19W 4-31.0200000004/16W 1-01.0200000004/12L 3-21.0000000004/9L 2-11.0000000004/6W 5-41.0100000004/3W 8-41.0100001003/31L 8-50.0010003443/30L 3-21.0000000003/27W 5-21.010000000
Regular Season Totals 2116500014129

Justin Slaten Player Profile
Career History


Justin Slaten
Splits
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SplitsGSIPWLERAKBBHBPCGHRERSVOSAVGHR
Overall 023.1143.51650014129530.1711Home 011.0111.66100522110.1390Away 012.1035.1104009107420.1961Day 011.1124.872001086320.2330Night 012.0022.39300443210.1031vs Lefty 00.0000.07400560000.1280vs Righty 00.0000.09100960000.2091March 02.00018.01100344110.3330April 08.1010.08100210220.0740May 013.0133.57300975200.1961Opponent vs DET 0 2.0 0 0 0.0 4 0 0 0 0 0 0 0 0 0.000 0 vs KC 0 1.1 0 0 0.0 0 0 0 0 0 0 0 0 0 0.000 0 vs MIL 0 1.2 0 1 0.0 1 1 0 0 1 2 0 1 0 0.167 0 vs CWS 0 3.0 0 0 0.0 3 0 0 0 0 0 0 1 1 0.000 0 vs TOR 0 2.1 0 2 11.6 0 1 0 0 4 4 3 1 0 0.364 1 vs NYM 0 3.0 0 0 0.0 1 0 0 0 0 0 0 0 0 0.000 0 vs BAL 0 2.2 0 0 13.5 2 2 0 0 6 4 4 0 0 0.462 0 vs CLE 0 1.0 0 0 0.0 1 1 0 0 0 0 0 0 0 0.000 0 vs TEX 0 3.1 1 0 0.0 1 0 0 0 0 0 0 1 1 0.000 0 vs MIN 0 1.0 0 1 18.0 0 0 0 0 3 2 2 0 0 0.500 0 vs STL 0 1.0 0 0 0.0 1 0 0 0 0 0 0 0 0 0.000 0 vs TB 0 1.0 0 0 0.0 2 0 0 0 0 0 0 1 1 0.000 0 Venue @ Chicago 0 1.0 0 0 0.0 0 0 0 0 0 0 0 0 0 0.000 0 @ Detroit 0 2.0 0 0 0.0 4 0 0 0 0 0 0 0 0 0.000 0 @ Cleveland 0 1.0 0 0 0.0 1 1 0 0 0 0 0 0 0 0.000 0 @ Boston 0 11.0 1 1 1.6 6 1 0 0 5 2 2 1 1 0.139 0 @ Toronto 0 1.1 0 2 20.3 0 1 0 0 4 4 3 1 0 0.500 1 @ Tampa Bay 0 1.0 0 0 0.0 2 0 0 0 0 0 0 1 1 0.000 0 @ Baltimore 0 1.0 0 0 36.0 1 1 0 0 4 4 4 0 0 0.571 0 @ Milwaukee 0 1.2 0 1 0.0 1 1 0 0 1 2 0 1 0 0.167 0 @ Texas 0 2.0 0 0 0.0 1 0 0 0 0 0 0 1 1 0.000 0 @ Kansas City 0 1.1 0 0 0.0 0 0 0 0 0 0 0 0 0 0.000 0

Justin Slaten Latest News
Still not throwing

Slaten (shoulder) has yet to play catch since being placed on the injured list Sunday, Christopher Smith of MassLive.com reports. Slaten was diagnosed with shoulder fatigue when he was placed on the injured list, so the issue didn't appear to be overly serious. However, he's likely to be sidelined until at least late June given his lack of progress.
Out with shoulder issue

The Red Sox placed Slaten on the 15-day injured list Sunday due to right shoulder inflammation. According to Chris Cotillo of MassLive.com, Slaten experienced some fatigue after his most recent appearance in Milwaukee on Wednesday, when he took the loss and a blown save after giving up two unearned runs in one-third of an inning. The right-hander will be eligible to be reinstated June 13, and he could be ready to rejoin the Red Sox at that point since his injury doesn't appear to be overly serious.
Extends scoreless stretch

Slaten retired all five batters faced to earn a hold in Tuesday's 2-0 win over the Mets. Slaten entered the middle of the seventh inning with a runner at first base and induced a double-play grounder to squelch the threat. He then got three harmless groundouts in the eighth. Slaten endured a three-game hiccup at the end of April/beginning of May (six runs, 2.1 innings), but the right-hander has been on point since. Tuesday's work extended a scoreless streak to 7.2 innings, during which he hasn't allowed a hit or a walk.
Blows save, takes loss Thursday

Slaten (0-2) was charged with the loss and a blown save in Thursday's 4-2 defeat to the Blue Jays, allowing three runs on three hits and one walk with no strikeouts in one inning. One game after giving up the game-ending run, albeit one that was unearned in extra innings in Wednesday's loss to Toronto, Slaten's showing Thursday was far less excusable. The right-hander gave up a go-ahead three-run home run to Vladimir Guerrero in the eighth inning, taking his first blown save of the season. Slaten now holds a 5.56 ERA, 1.15 WHIP and 9:5 K:BB over 11.1 innings, and it wouldn't be surprising if he starts to lose some high-leverage work to Garrett Whitlock and Liam Hendriks in Boston's bullpen.
Notches third save

Slaten picked up the save in Monday's 4-2 win against the White Sox, pitching a clean inning with one strikeout. Slaten efficiently secured the win, requiring only 12 pitches -- 10 of which were strikes -- to retire the side in order. Aroldis Chapman pitched the eighth inning, as he was called upon to face the top of the Chicago lineup. However, this outing shows that Slaten could be in line for more save opportunities as Boston manager Alex Cora may look to deploy Chapman in the highest leverage spots. Although Slaten owns a 4.00 ERA, his performance has been much better under the hood, pitching to a 1.59 FIP, 0.56 WHIP and 8:1 K:BB across nine innings.
Slams door for second save

Slaten earned the save after throwing a clean ninth inning in Wednesday's win over the Rays. He struck out two. Slaten faced little resistance, retiring the side on just 11 pitches (eight strikes) for his second save of the season. Aroldis Chapman remains the favorite for save opportunities out of the Boston bullpen, although the left-hander can cede the occasional chance based on certain matchups. The right-handed Slaten, who now holds a 5.14 ERA, 0.71 WHIP and 5:1 K:BB through seven innings, was called upon to face three right-handed batters Wednesday.
Notches save in opener

Slaten struck out one and didn't allow a baserunner in a scoreless ninth inning to earn the save Thursday against the Rangers. Closer Aroldis Chapman entered for the eighth inning with the game tied 2-2, as the lefty-hitting Corey Seager was batting leadoff, opening up the ninth inning for Slaten after Boston took the lead. The right-hander recorded two saves and 13 holds with a 2.93 ERA, 1.01 WHIP and 58:9 K:BB across 55.1 innings as a rookie last season, and he's one of the Red Sox's top relief arms again in 2025, even if Chapman is expected to be the primary closer early on.
Works scoreless inning

Slaten allowed a hit and struck out two over a scoreless inning in Friday's spring game against Miami. Slaten made his third Grapefruit League appearance and has yet to give up an earned run. The right-hander is the mix for save opportunities this season along with Aroldis Chapman and Liam Hendriks.
Notches second save

Slaten allowed one hit and zero walks in a scoreless ninth inning to pick up his second save of the season in Sunday's season finale against Tampa Bay. Slaten allowed a bunt single to Dylan Carlson to lead off the ninth, but he induced a foul-out and a pair of line-outs to end the game and bring the Red Sox record to a fitting 81-81. With incumbent closer Kenley Jansen on the injured list, Slaten was able to notch his first save since March 31. The 27-year-old Slaten had an encouraging rookie season out of the Red Sox bullpen, pitching to a 2.93 ERA, 1.01 WHIP and 58:9 K:BB in 55.1 innings, adding six wins, 13 holds and two saves in six chances. With the 37-year-old Jansen hitting free agency, Slaten could find himself in the mix for saves next season.