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

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

The Seattle Mariners are being heavily linked with a trade involving a previous Gold Glove award winner and 2025 All-Star.

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.

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.

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

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.

The Seattle Mariners had a difficult weekend after the Winter Meetings. They have already re-signed Josh Naylor to a five-year deal, but they lost Jorge Polanco