Edwin Díaz Is Headed for Surgery, Shaking up Dodgers Bullpen

When the Dodgers signed Edwin Díaz to a three-year, $69 million deal last December, it marked the second straight winter that they paid top dollar for a free agent closer, after they’d inked Tanner Scott to a four-year, $72 million deal in January 2025. That they double-dipped in such fashion was both a particularly ostentatious display of their purchasing power and an acknowledgement that even the best relievers can be fickle and fragile. Scott scuffled throughout last season while also missing time due to multiple injuries, and ultimately spent October as a bystander as the Dodgers cobbled together a makeshift late-game bullpen and won their second consecutive championship. Now, after struggling with his velocity and command, Díaz has also gone down with an injury. On Monday, one day after failing to retire any of the four Rockies he faced, he was placed on the 15-day injured list due to loose bodies in his right elbow. He is set to undergo arthroscopic surgery on Wednesday to have them removed.
Even in small-sample season, the 32-year-old Díaz’s numbers tell enough of a story to suggest that something is amiss. He’s allowed seven runs in six innings for a 10.50 ERA, accompanied by a 4.96 FIP and a 4.39 xERA. His 15.2% differential between his 30.3% strikeout rate and 15.2% walk rate is just over half of his 29.8% differential last year. His four-seam fastball has averaged just 95.7 mph, down from last year’s average of 97.2 mph while with the Mets, for whom he posted a 1.63 ERA and a 2.28 FIP in 66 1/3 innings. His average arm angle has dropped, changing the movement profiles of both his four-seamer and slider:
| Season | Pitch | Velo | Arm Angle | Vert | Horiz | wOBA | xwOBA | Whiff% |
|---|---|---|---|---|---|---|---|---|
| 2024 | 4-Seamer | 97.5 | 18 | 13.2 | 13.6 ARM | .276 | .279 | 36.6% |
| 2025 | 4-Seamer | 97.2 | 17 | 12.9 | 13.1 ARM | .223 | .283 | 39.4% |
| 2026 | 4-Seamer | 95.7 | 13 | 12.7 | 10.5 ARM | .564 | .454 | 11.5% |
| 2024 | Slider | 89.6 | 23 | 5.3 | 1.1 GLV | .263 | .226 | 39.4% |
| 2025 | Slider | 89.1 | 22 | 3.8 | 1.7 GLV | .237 | .216 | 44.0% |
| 2026 | Slider | 88.1 | 19 | 2.6 | 2.5 GLV | .280 | .245 | 28.1% |
Relative to last season, Díaz has lost over two and a half inches of horizontal run on his fastball and nearly an inch of cut on his slider, which itself is one mile per hour slower, as well. Neither pitch has fooled hitters to nearly the same degree as before, and his overall swinging strike rate has dropped from 17.3% in 2024 and 18.0% last year to 9.1% this season. Read the rest of this entry »






