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Mariners Weigh Short Bullpen Plan for Bryan Woo Before All‑Star Break

A brief relief outing would limit Woo’s long layoff and reshuffle which pitchers occupy the club’s tight late‑season bullpen slots.

Overview

  • Seattle named its probable starters for the post‑break series with the Tampa Bay Rays and is starting Bryce Miller in the final game of the first half.
  • The club is publicly discussing a possible pre‑break bullpen appearance for Bryan Woo to prevent a roughly 10‑day gap between starts and keep him stretched out.
  • Woo’s home/road splits — a 2.10 ERA at T‑Mobile Park versus a 6.28 ERA on the road — factor into whether he would be used out of the bullpen or kept in the rotation.
  • Front office conversations also include moving struggling starter Luis Castillo into a relief role and promoting prospects Kade Anderson or Ryan Sloan to bolster relief depth once injured relievers return.
  • Those choices follow back‑to‑back losses to Miami and could shape workload and roster makeup for the stretch run, with Bryce Miller’s strong 2026 performance central to Seattle’s postseason hopes.