Seattle figures to have six spots in the bullpen already accounted for with Andres Munoz, Matt Brash, Eduard Bazardo, Gabe Speier, Ferrer and Carlos Vargas. Seattle has said it wants to bring in another outside arm, which would leave just one additional spot in the 'pen.

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

The Seattle Mariners reportedly could have some depth on the way. On Friday night, MassLive.com's Chris Cotillo reported that the Mariners are "in talks" with

While the Mariners will retain most of the roster that went deep into October last season, their 2026 group won’t feature a full-fledged form of “running it back.” Jorge Polanco, one of their most imp

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

The Seattle Mariners are in conversations with free agent catcher Andrew Knizner on a deal, reports Chris Cotillo of MassLive. If they reach agreement on a big league contract, he’d be in line to back up Cal Raleigh.

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,

Mariners President Jerry Dipoto says Seattle isn't done dealing, but a slow market has cooled down the Hot Stove League

Seattle still wants to address second base, but look to be standing pat at the hot corner. Visit MLB Trade Rumors for more.

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,

An emerging opportunity could allow the Cardinals to trade an All-Star to the Mariners amid Seattle’s growing roster urgency.