Duran had not appeared on the mound since last Saturday, and Philadelphia had gone 1-4 in his absence without public signs of a problem. The oblique injury’s severity will determine whether he’s sidelined for about a month or considerably longer, and there is no clear immediate replacement for the ninth inning.
The 2026 season had shown Duran as a reliable pillar out of the bullpen. On a one-year, $7.5 million deal, he had converted all five save opportunities in six and two-thirds innings, posted a 1.35 ERA, and walked nobody. His absence comes as Philadelphia, sitting at 8-11, can ill afford to be without him.
Oblique injuries in power pitchers often carry four-to-eight weeks, particularly when core mechanics that fuel high velocity are involved. With the IL designation retroactive to April 15, the earliest return under the 15-day minimum would be April 30, though a more conservative timeline could push his return into May or June depending on the strain’s severity.
Philadelphia faces uncertainty in the ninth inning without an obvious replacement. Duran’s velocity (around 103 mph on his four-seamer) and his signature “splinker” make him a difficult benchmark to replace, and the team will need to reevaluate late-game approach until a clear closer emerges.
Along with Duran’s IL move, the Phillies recalled right-hander Seth Johnson and utilityman Felix Reyes from Triple-A, with Reyes added to the 40-man roster. Otto Kemp was optioned to Triple-A, and outfielder Pedro Leon was released as part of the roster adjustments to bolster depth during Duran’s absence.