Dodgers place Blake Treinen on 15-day injured list with elbow inflammation

The Los Angeles Dodgers placed right-hander Blake Treinen on the 15-day injured list on Sunday, marking another bullpen adjustment during a stretch where manager Dave Roberts has leaned heavily on his late-inning core. According to reporting from ’s Sonja Chen and others, Treinen was dealing with inflammation in his throwing elbow, and the discomfort emerged soon after his previous outing.

Roberts described the timeline as starting the day after Treinen pitched, when the reliever felt soreness. The most recent appearance came in a Friday game that ended with Los Angeles edging the Baltimore Orioles 6-5. In that outing, Treinen worked one inning and held the opposition scoreless, but the soreness that followed his effort prompted the Dodgers to take the cautious step of using the injured list.

A 15-day IL placement is designed for teams to gain clarity without rushing an outcome. For relievers, elbow inflammation can be especially complicated because the recovery window depends on how quickly symptoms settle and how well the throwing mechanics can be restored under game intensity. The Dodgers’ decision suggests the organization believes the issue requires more than day-to-day management and wants Treinen to progress through a proper evaluation and throwing plan.

Treinen’s absence also has immediate roster implications for a bullpen that has to cover innings not only in the next few games, but also across the calendar where usage patterns often accumulate. When a dependable high-leverage option goes on the IL, teams typically redistribute workload across setup roles and bridge innings, which can change how managers pace pitchers during close games. The Dodgers will now need to locate replacement innings both before and after their most trusted late options, even as they continue to manage the health and availability of the rest of the relief group.

The context here matters because late-inning stability often correlates with a team’s ability to protect leads and keep games within reach. In a one-run environment, every reliever assignment can influence leverage decisions in subsequent innings. While the Dodgers may have internal candidates to step into Treinen’s slot, the transition still tests depth, because the replacement pitcher’s effectiveness is often measured not just by command and velocity, but by the ability to handle hitters in the specific sequence that arrives after starter innings.

For now, the clearest next step is how the Dodgers monitor Treinen’s throwing elbow and determine whether inflammation responds to the rest period. Roberts’ comments, as reported, frame the issue as soreness that developed after the previous appearance, rather than an abrupt flare-up during it. That distinction can matter for planning, but it does not eliminate the need for progressive bullpen work and reassessment before Treinen can be cleared to return.

Los Angeles’ remaining bullpen mix, including how it assigns innings in the wake of Treinen’s placement, will be the storyline to watch over the next two weeks. Even without additional details beyond the IL move and the reported cause, the immediate impact is straightforward: one of the team’s go-to relief pieces will be unavailable, and the Dodgers will have to reshape how they cover the most stressful outs.