The Philadelphia Phillies have placed closer Jhoan Duran on the 15-day injured list with a strained left oblique, manager Rob Thomson announced Saturday. Duran, who hasn't pitched since April 11, said the injury occurred during a side session Friday and is described as "very mild." The team placed him on the IL retroactive to Wednesday, with Brad Keller stepping into the closer role.

Duran had been impressive this season, posting a 1.35 ERA with five saves, eight strikeouts, and no walks in his appearances. The 15-day absence comes at a crucial time for the Phillies' bullpen depth, though Thomson indicated the injury shouldn't be long-term. "It's not going to be long, but I can't hold you to that," the manager said when asked about Duran's timeline.

To fill the roster spot, the Phillies called up right-hander Seth Johnson from Triple-A Lehigh Valley. The move highlights the team's need to maintain bullpen stability while their closer recovers. Duran's oblique strain, though described as mild, underscores the fragility of pitching staffs during the early season stretch. The Phillies will rely on Keller's experience while monitoring Duran's progress through the IL stint.