The Boston Red Sox placed star setup man Garrett Whitlock on the 15-day injured list retroactive to August 10, 2026, due to right elbow inflammation, as the team drops five straight games and manages a major bullpen absence during their American League postseason push.
Garrett Whitlock Lands on the 15-Day Injured List
The Boston Red Sox officially announced the placement of star setup man Garrett Whitlock on the 15-day injured list with right elbow inflammation, recalling right-hander Greg Weissert from Triple-A in a corresponding move. The transaction is retroactive to August 10, meaning Whitlock is eligible to return in as little as 12 days, though the team has not yet indicated whether that is the actual expectation.
Whitlock has been a vital high-leverage arm for Boston since the team selected him from the rival New York Yankees in the 2020 Rule 5 Draft. Across 44 innings this season, he has pitched to a sparkling 2.05 ERA backed by a 29.2% strikeout rate and a minuscule 4.2% walk rate. Dating back to early May, the right-hander has allowed only four runs over 29 2/3 innings, walking just a single batter among the 106 he faced along the way. Major League Baseball tracking notes that no pitcher with at least 40 innings pitched has caused opposing hitters to chase pitches off the plate more often than Whitlock, whose 42% chase rate leads the league.
Workload Concerns and Physical Toll
Behind the recent inflammation lies a heavy workload that interim manager Chad Tracy believes has been building over the last few weeks. Whitlock logged 13 appearances in July alone—a month that saw the Red Sox put together a 15-game win streak—and has added four innings in August. In his most recent outing against the Athletics on August 9, he surrendered a run, resulting in his first blown save since July 24.
“Been throwing a lot and warmed up a lot, which has been a big thing. Tightened up on me after warming up [Tuesday] night. Not as much on-and-off. It’s been building. I would say that’s probably the better word. So it’s just one of those things… It was kind of gradually getting that way, and then it’s getting to a pretty big point.”
Garrett Whitlock, Red Sox pitcher
Despite the latest discomfort, interim manager Chad Tracy noted that Whitlock had not yet undergone an MRI when addressing reporters, though evaluation plans were set for Thursday, August 13, before the conclusion of the series against the Toronto Blue Jays.
“We got to see how he responds, how he feels [Thursday], and we’ll go from there.”
Chad Tracy, Interim Manager
Bullpen Depth Facing Immediate Test
The loss of Whitlock leaves a significant void in the late innings for Boston. Operating alongside closer Aroldis Chapman, Whitlock has anchored one of the most formidable bullpen combinations in the sport. To navigate the absence, the Red Sox will rely on alternative relief options who have accumulated holds throughout the season, including Justin Slaten, Tyron Guerrero, and trade-deadline acquisition Erik Miller, all of whom have notched ten or more holds.
The timing of the injury compounds a difficult stretch for the club. After a successful summer surge transformed the franchise from trade-deadline sellers into buyers, the Red Sox have dropped five straight games. Despite the recent skid, Boston holds a 64-56 record and maintains possession of the second Wild Card spot in the American League, sitting 4.5 games ahead of the Texas Rangers.
Postseason Outlook and Next Steps
Statistical models continue to view Boston as a strong postseason contender despite the current losing streak. FanGraphs places the team’s playoff probability at 91%, while PECOTA lists their chances at 89%. However, avoiding a series sweep against Toronto and stabilizing the pitching staff remain immediate priorities as the club waits on medical updates regarding Whitlock’s elbow following Thursday’s evaluation.
