The Mariners signed first baseman Josh Naylor to a five-year, $92.5 million contract, which will keep him on the team through the remainder of the decade. Seattle also acquired high-leverage left-handed reliever Jose Ferrer in a trade with the Washington Nationals.

The Seattle Mariners swung a pair of trades for Josh Naylor and Eugenio Suárez at the trade deadline this season. But both sluggers were on expiring contracts w

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 have a clear objective this offseason: fix the offense. While the pitching staff remains one of the deepest and most talented groups in baseball, the lineup has consistently struggled to provide enough run support.

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

FanFest, a two-day event that includes the chance to meet players, will be held by the Seattle Mariners Jan. 31-Feb. 1 at T-Mobile Park.

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

The Mets have outbid the Mariners for free agent Jorge Polanco, who has agreed to a deal to go to New York, sources told The Times early Saturday.

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

The St. Louis Cardinals and Seattle Mariners could come together on a trade involving Brendan Donovan this offseason.