The Seattle Mariners have shut down Andrés Muñoz for the remainder of the 2026 regular season after placing the All-Star closer on the 15-day injured list with right knee inflammation.
The move comes with Seattle down to its final three games after being eliminated from postseason contention. The Mariners recalled right-hander Troy Taylor from Triple-A Tacoma to take Muñoz's place on the roster.
Muñoz's knee issue first surfaced during Seattle's Sept. 20 game against the Colorado Rockies . He left after facing three batters, and an MRI later showed no structural damage. The inflammation, however, remained enough of a concern for the Mariners to end his season.
The shutdown ends an uneven season for Muñoz. He finished with a 4.24 ERA, 1.22 WHIP and 89 strikeouts in 57⅓ innings while converting 28 saves. He also walked 24 batters across his 61 appearances.
For Seattle, the immediate focus is finding enough innings to close out a disappointing final weekend. Taylor provides another arm after spending most of the season with Tacoma. The 25-year-old had a 5.05 ERA, 65 strikeouts and 37 walks across 57 Triple-A innings before his September call-up.
Taylor has already appeared in the majors for Seattle, pitching in parts of two previous seasons. He owns a 5.88 ERA across 26 innings in 29 career appearances.

Seattle Mariners reliever Andrés Muñoz pitches during a playoff game against the Detroit Tigers at T-Mobile Park on Oct. 5, 2025.Stephen Brashear-Imagn Images
With the Mariners eliminated, there is little reason to push Muñoz through a knee issue. Instead, the club can use the final games to evaluate its bullpen depth while giving its closer additional time to recover.
For Muñoz, the goal now is simple: get healthy and put the 2026 season behind him before preparing for 2027.
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This story was originally published by Athlon Sports on Sep 26, 2026, where it first appeared in the MLB section. Add Athlon Sports as a Preferred Source by clicking here.

