It's Official: The Mariners Just Dropped Their 2026 Opening Day Roster and Spring Training is Over

Cal Raleigh - Seattle Mariners

It's Official: The Mariners Just Dropped Their 2026 Opening Day Roster and Spring Training is Over

The Seattle Mariners have announced their 2026 Opening Day roster, and just like that, spring training is in the books. This is it. Real baseball starts now.

The Roster is Set

After weeks of games, competitions, and roster battles at spring training, John Trupin broke the news on March 25 that the M's have locked in who is taking the field when the season kicks off. Cal Raleigh will be behind the plate, and Julio Rodriguez will patrol center field. The core is in place, and now it's time to see if this team can deliver in the AL West.

Spring Training Showed What We're Working With

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The Mariners had their share of ups and downs during the spring slate. There were questions about who would win starting jobs, depth pieces fighting for roster spots, and the usual spring training chaos. But that's all behind us now. The roster decisions have been made, and the front office has made their choice about who they believe can compete at T-Mobile Park and on the road.

Next Stop: Opening Day

The 2026 season is here, and every team in baseball is undefeated. The Emerald City faithful are ready to pack the house and see what this Mariners squad can do. Whether they can stay competitive in a tough AL West remains to be seen, but the roster is locked, the plans are set, and it's time to find out if this team can turn spring into meaningful wins when it counts.

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This article was created with AI assistance and reviewed by Seattle On Tap editorial staff. Always verify information with official team sources.

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