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Dodgers Restructure Bullpen with Feyereisen and Loutos Additions

Los Angeles shifts Kopech and Treinen to 60-day IL to make room for veteran reliever J. P. Feyereisen and rookie Ryan Loutos.

Apr 24, 2025; Phoenix, Arizona, USA;  Arizona Diamondbacks pitcher J.P. Feyereisen (61) throws in the tenth inning against the Tampa Bay Rays at Chase Field. Mandatory Credit: Matt Kartozian-Imagn Images/File Photo
Jun 1, 2024; Philadelphia, Pennsylvania, USA;   St. Louis Cardinals pitcher Ryan Loutos (68) pitches in the eighth inning against the Philadelphia Phillies at Citizens Bank Park. Philadelphia won 6-1. Mandatory Credit: John Geliebter-USA TODAY Sports/File Photo
PHOENIX, ARIZONA - APRIL 24: Relief pitcher J.P. Feyereisen #61 of the Arizona Diamondbacks pitches against the Tampa Bay Rays during the game at Chase Field on April 24, 2025 in Phoenix, Arizona. The Rays defeated the Diamondbacks 7-4 in ten innings.
The Dodgers on Thursday reacquired relief pitcher J.P. Feyereisen, shown pitching against the San Francisco Giants last May in San Francisco. Feyereisen, 32, returns to the Dodgers as a waiver claim from the Arizona Diamondbacks. (Photo by Ezra Shaw/Getty Images)

Overview

  • The Los Angeles Dodgers claimed right-handed pitcher J. P. Feyereisen off waivers from the Arizona Diamondbacks and acquired rookie reliever Ryan Loutos from the St. Louis Cardinals for cash considerations.
  • Michael Kopech and Blake Treinen were transferred to the 60-day injured list to free up roster space for the new acquisitions.
  • Feyereisen, who has a 3.07 ERA across five MLB seasons, made two appearances for the Diamondbacks in 2025 before being designated for assignment.
  • Loutos, 26, debuted in the majors in 2024 and has yet to allow a run in his three MLB appearances; he has also shown promise in Triple-A this season.
  • The moves highlight the Dodgers' efforts to address bullpen challenges through a mix of experienced and emerging talent.