Mariners, Cal Raleigh and Randy Arozarena
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Seattle Mariners, Colt Emerson
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While all eyes will be on starting Mariners catcher Cal Raleigh in 2026, Seattle wanted to ensure a strong backup was in place too.
The Mariners earned one of the boldest predictions of the spring, and it reflects just how complete Seattle looks in 2026.
Mitch Garver, who was a late addition to Mariners camp on a Minor League deal and as a non-roster invite, has won the backup catcher job, a source familiar with the club’s thinking told MLB.com on Sunday morning.
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Mariners' Pitching Strategy and 2026 Season Potential
Donnie Rightside and Tom Vecchio explore the Mariners' pitching strategy featuring Gilbert, Castillo, Kirby, & Wu. Assess team dynamics and possible challenges.
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Mariners @ White Sox - MLB game preview for March 22, 2026 21:05
A look ahead to the MLB game between MARINERS and WHITE SOX. Your source for scores, previews, recaps, box scores, and more from every Major League Baseball. The schedule is set, and we're ready for some baseball.
The Mariners saw a sharp Andrés Muñoz return from WBC action, and it reinforced just how important he is to Seattle’s bullpen.
Ryan Sloan made quick work of the batters he faced in a showdown of two of the top farm systems in baseball. Aryanna Frank / MLB Photos via The Friday Spring Breakout Game between the Seattle Mariners and the Milwaukee Brewers — one of two Spring Breakout Games Milwaukee will play — looked like the marquee prospect matchup of the Cactus League,