Year | W | L | Sv | Hold | IP | H | BB | SO | ER | ERA | WHIP | Rate |
2025 proj | 6 | 2 | 2 | 13 | 54.0 | 46 | 9 | 57 | 17 | 2.83 | 1.019 | 28.3 |
2025 | 1 | 4 | 3 | 4 | 24.3 | 16 | 8 | 17 | 9 | 3.33 | 0.986 | 14.4 |
2024 | 6 | 2 | 2 | 13 | 54.3 | 46 | 9 | 57 | 17 | 2.82 | 1.012 | 34.3 |
Date | News |
8/28/25 | Red Sox activate RHP Justin Slaten, OF Rob Refsnyder. The Boston Red Sox activated right-hander Justin Slaten from the 60-day injured list Thursday and brought back outfielder Rob Refsnyder from the 10-day IL. Slaten has been out since late May with shoulder inflammation, while Refsnyder was sidelined with a left oblique strain. To make room on the active roster, first baseman Nathaniel Lowe was placed on the paternity list and left-hander Jovani Moran was optioned to Triple-A Worcester. Slaten, 27, was 1-4 with a 3.47 ERA in 24 relief appearances this season and 7-6 with a 3.09 ERA in 68 career relief appearances over the past two seasons. Source: https://www.news-daily.com/fieldlevel/red-sox-acti... |
8/27/25 | What Justin Slaten's return could mean for dominant back end of Red Sox' bullpen. The Red Sox have the best one-two punch in the AL at the back end of their bullpen. Justin Slaten could be a significant addition. Source: https://sports.yahoo.com/article/justin-slatens-re... |
8/25/25 | No Red Sox roster moves Monday but Justin Slaten, outfielder expected back in coming days. The Red Sox won't make a roster move Monday but Justin Slaten, Rob Refsnyder are expected back in coming days. Source: https://sports.yahoo.com/article/no-red-sox-roster... |
8/18/25 | Red Sox get injury updates on key slugger, reliever. The Boston Red Sox received a mixed batch of injury updates Monday afternoon that could shape the course of their late-season run. Both reliever Justin Slaten and outfielder Wilyer Abreu are recovering from recent setbacks, and their health will be vital to Boston's playoff push down the stretch. The injury update regarding the reliever was a positive one. According to The Athletic's Jen McCaffrey, Slaten was initially scheduled to throw live batting practice, but the team chose a more aggressive approach. Source: https://clutchpoints.com/mlb/boston-red-sox/red-so... |
8/05/25 | Injured Boston Red Sox setup man 'a lot closer than people realize'. Injured Red Sox setup man Justin Slaten (shoulder) threw a bullpen session off the mound at Fenway Park on Tuesday. “I think we're a lot closer to getting back into action than people realize right now,” Slaten said after he finished. “Just continue building the volume, mixing in breaking balls next time and then hitters after that,” Slaten said. Slaten later learned what was causing soreness in his shoulder. Source: https://www.masslive.com/redsox/2025/08/injured-bo... |
8/04/25 | Red Sox’s Justin Slaten Shares Confusing Injury Update Amid Division Race. The Boston Red Sox might get some bullpen help ... or they may not. We're not quite sure. Source: https://sports.yahoo.com/article/red-sox-justin-sl... |
8/02/25 | Red Sox Receive Tremendous News On Injured Contributor. The Boston Red Sox have been without one of their most impactful relievers for two months, but it doesn't look like they'll need to wait much longer for his return. Justin Slaten's unidentified injury has been… well, identified. Slaten, who has not appeared in a game since May 28, had been dealing with an oddly mysterious neck/shoulder injury that caused him to be shut down from his throwing program on numerous occasions. Slaten, however, shared he feels “back to normal” on Saturday, according to WEEI's Rob Bradford. Source: https://nesn.com/2025/08/red-sox-receive-tremendou... |
7/29/25 | As Red Sox await news on two key injured players; Justin Slaten takes 'good first step'. The Red Sox remain in fact-finding mode when it comes to two key injured players who are not with the club on its quick road trip to Minneapolis. Manager Alex Cora didn't have much in the way of updates on starter Tanner Houck (right flexor pronator strain) or Marcelo Mayer (right wrist sprain) but indications are that neither player is close to rejoining the major league roster. Both Houck and Mayer continue to seek opinions and get tests on their respective injuries, with Boston hoping to know more by the time the team returns home to face the Astros this weekend. “With both cases, the more information we get during the week, the more clear we'll be on the weekend,” said Cora. Source: https://www.masslive.com/redsox/2025/07/as-red-sox... |
7/25/25 | Red Sox Issue Positive Update On Forgotten Relief Pitcher. The Boston Red Sox have finally received some good news regarding Justin Slaten. Slaten, who hasn't pitched in almost two months, has repeatedly undergone setbacks from the right shoulder inflammation that sent him to the injured list on June 1. Boston was perplexed with the majority of them, eventually finding out he'd been dealing with a nerve issue. Red Sox manager Alex Cora issued his latest update on the right-hander on Friday. “Slaten says that he's feeling better, so hopefully next week we can move forward and take a step toward being on the mound,” Cora said, as transcribed by MassLive's Christopher Smith. Boston will not push things with the 27-year-old, especially considering they've Source: https://nesn.com/2025/07/red-sox-issue-positive-up... |
7/19/25 | Red Sox' Alex Cora gives 'positive' injury updates on 3 relievers; 'Big step'. Red Sox reliever Justin Slaten, who has been on the injured list since June 1 with right shoulder inflammation, has begun playing catch again. Slaten played catch on June 27 but the Red Sox halted his throwing progression at that point and limited him to plyo work in the gym “to get his strength back.” “Just playing catch but that's a big step,” manager Alex Cora said before Boston's game against the Cubs on Saturday at Wrigley Field. Source: https://www.masslive.com/redsox/2025/07/red-sox-al... |
7/10/25 | Injured Red Sox setup man not throwing, doing plyo work 'to get strength back'. Red Sox setup man Justin Slaten, who has been on the injured list since June 1 with right shoulder inflammation, played catch June 27. “Right now he's doing plyos, trying to get the strength back,” manager Alex Cora said before Boston's game against the Rays on Thursday. On the day the Red Sox placed Slaten on the IL, he said he was dealing with “a little bit of fatigue” and he didn't think the injury “anything super serious.” Source: https://www.masslive.com/redsox/2025/07/injured-re... |
6/28/25 | Red Sox Announce Justin Slaten, Luis Guerrero, and Chris Murphy Roster Moves. The Boston Red Sox announced that Justin Slaten was put on the 60-day injured list, Luis Guerrero to the 15-day injured list, and Chris Murphy was reinstated to the active roster. Source: https://sports.yahoo.com/article/red-sox-announce-... |
6/28/25 | Red Sox's Justin Slaten Takes Big Step In Rehab: What's Next?. Slowly but surely, Justin Slaten is working his way back to the Red Sox. The right-hander played catch Friday for the first time since getting injured, Masslive.com's Christopher Smith reported Saturday. According to Smith's post on X, Slaten is feeling better but the team has not scheduled a bullpen session. Earlier this month, The Boston Globe's Tim Healey reported Slaten has an “apparent nerve issue in his neck, which is impacting his shoulder.” Source: https://nesn.com/2025/06/red-soxs-justin-slaten-ta... |
6/27/25 | Key Red Sox reliever takes step toward returning from IL (+ other injury updates from Alex Cora). When Red Sox setup man Justin Slaten hit the injured list with shoulder inflammation on June 1, the club thought he'd only be out for a couple weeks. Nearly a month into his IL stint, Slaten is finally about to take a first step toward returning. Slaten, who has been dealing with nerve issues in his neck/shoulder area and has been completely shut down from throwing for weeks, will play catch for the first time Friday, according to manager Alex Cora. Slaten last pitched for the Red Sox on May 28 in Milwaukee. Source: https://www.masslive.com/redsox/2025/06/key-red-so... |
6/20/25 | Why Alex Cora Must Be Careful With Key Red Sox Relief Pitcher. As of June 20, 2024, they ranked in the top 10 in each of those categories as well. By the end of 2024, they were in the bottom 10 in ERA. Justin Slaten has already missed time due to injury, placing more weight on other relievers. One of which is Greg Weissert. Source: https://nesn.com/2025/06/why-alex-cora-must-be-car... |
6/18/25 | Red Sox reliever with ‘robust arsenal’ comes up ‘huge’ again late in game. The Red Sox reliever has been "huge" with six holds and three saves in 11 outings since Boston placed Justin Slaten on the IL. Source: https://sports.yahoo.com/article/red-sox-reliever-... |
6/15/25 | Red Sox Pitcher Dealing With Oddly Mysterious Injury. The Boston Red Sox will send the majority of their pitchers to the injured list at some point this season, which has become standard operating procedure in recent years for most teams across MLB. It's pretty rare for things to reach the point they have with Justin Slaten, though. Slaten is currently sitting on the injured list with an unidentifiable neck/shoulder injury that will keep him on the shelf indefinitely, according to Tim Healey of The Boston Globe. Slaten discussed the injury over the weekend, though everyone is still trying to figure out what is going on. Source: https://nesn.com/2025/06/red-sox-pitcher-dealing-w... |
6/11/25 | Red Sox Injury Update: Justin Slaten concern, Chris Murphy rehab, Wilyer Abreu. The Boston Red Sox have gotten mostly short outings from their starting pitchers and have played more extra-inning games than any other team in the league. Justin Slaten has been out of commission since he went on the injured list with shoulder inflammation, retroactive to May 29. Red Sox manager Alex Cora on June 10 told reporters that Slaten is progressing "slower than we expected," per Alex Speier of The Boston Globe. Source: https://bosoxinjection.com/red-sox-injury-update-j... |
6/10/25 | Alex Cora provides ominous report on key Red Sox reliever, plus other injury updates. It had been the Red Sox' hope that reliever Justin Slaten would only miss a short period of time when he was first placed on the IL earlier this month. “It's slower than we expected,” said Alex Cora. Slaten was being counted on as a high-leverage option while occasionally handling closing duties when Aroldis Chapman wasn't available. “It's a big (loss),” said Cora. Source: https://www.masslive.com/redsox/2025/06/alex-cora-... |
6/08/25 | Key Red Sox Pitcher Still Far From Return. Since the beginning of May, the bullpen has thrown 141.2 innings. Only the Milwaukee Brewers have used their bullpen more over that span. Justin Slaten was a key contributor in the bullpen early this season, often coming in for the seventh or eighth inning in close games. According to Baseball Reference, 18 of Slaten's 24 appearances were “high leverage”. Source: https://nesn.com/2025/06/red-sox-rumors-key-pitche... |