The Cardinals are looking for top prospects in a Brendan Donovan deal and the Mariners and Giants are competing for the All-Star's services.

Polanco was a big reason why Seattle's offense took a step forward in 2025. The former All-Star had a bounce-back season in his second campaign with the Mariners. In his first season in Seattle, Polanco slashed .213/.296/.355 with 16 homers and 45 RBIs in 118 games played.

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,

The Mariners held the lead for only 1:25 after Andreev’s goal midway through the second period. Cole Donhauser tied the game with an unassisted goal, then assisted on a goal by Matt DeMelis in the third period that gave Worcester a 2-1 advantage.

The Seattle Mariners came into the offseason with three key free agents: Eugenio Suárez, Jorge Polanco, and Josh Naylor. It didn't take long for the Mariners to

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

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

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

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.

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.