The Mariners have found their leading candidate to be their backup catcher in 2026. The club is nearing an agreement on a Major League contract with veteran backstop Andrew Knizner, sources told MLB.com on Friday night,

Polanco will likely spend time at first base, a position he has one appearance at in his career.

The Mariners are closing in a deal to sign veteran free agent catcher Andrew Knizner, industry sources told The Seattle Times. A contract had not been finalized as of Friday afternoon. Knizner, 30, would serve as Cal Raleigh’s backup,

Jorge Polanco is reportedly signing with the Mets, which brings uncertainty and opportunity to the Seattle Mariners' offseason, insider Shannon Drayer reports.

A Mariners insider shared a disappointing prediction on Jorge Polanco’s free agency. Here’s what the latest report means for Seattle’s offseason plans.

Ketel Marte trade rumors: Could the Mariners land Diamondbacks star? Breaking down Ketel Marte Mariners fit and Diamondbacks trade outlook.

Full details on the prospects the Seattle Mariners picked up and lost in Wednesday's Rule 5 Draft during the MLB winter meetings in Florida.

Jerry Dipoto joked that he was “jonesing” to make another move at this week’s Winter Meetings. But Seattle’s president of baseball operations was also quick to point out that he and general manager Justin Hollander had already checked off two big items on their offseason shopping list,

If that is, in fact, the case, it will also close the book on the Mitch Garver-era in Seattle. After recently trading projected backup Harry Ford, the speculation was that Garver could return on a modest deal to be Raleigh's backup once again.