Yosver Zulueta: Everything you need to know

The Mariners designated Zulueta for assignment Wednesday. Seattle needed to free up a spot on its 40-man roster. Zulueta has spent all of the 2026 season at Triple-A Tacoma, holding a 5.75 ERA and 21:16 K:BB across 20.1 frames. He stands a decent chance of passing through waivers, and if that happens he could remain in the organization.

Zulueta was optioned to Triple-A Tacoma on Sunday. Zulueta was traded to Seattle from the Reds in January, and he was able to produce a 3.86 ERA and 1.29 WHIP with 10 strikeouts over seven innings in eight appearances with the Mariners during spring training. The right-hander struggled to a 6.14 ERA over 7.1 innings in seven appearances out of the bullpen with Cincinnati in 2025. He'll look to get into a groove at Tacoma in an attempt to get another shot with the Mariners' major-league roster this season.

The Reds traded Zulueta to the Mariners on Thursday, Francys Romero of BeisbolFR.com reports. After being DFA'd by the Reds earlier in the day, Zulueta will recapture a 40-man roster spot upon joining his new club. The 27-year-old righty allowed five earned runs in just 7.1 regular-season innings with the Reds during 2025 but finished with a 3.28 ERA and 1.15 WHIP through 60.1 frames in Triple-A. He's likely ticketed to begin the 2026 campaign at Triple-A Tacoma.