The Seattle Mariners bolstered their bullpen thanks to the addition of a Los Angeles Dodgers pitcher who was viewed as expendable.

Late Sunday night, the Seattle Mariners and Los Angeles Dodgers finalized a one-for-one pitcher trade as both clubs continue shaping their rosters ahead of next month’s Rule 5 Draft.

Two players who briefly played for the Seattle Mariners are joining three holdovers with M's ties on the Baseball Hall of Fame ballot for 2026.

Seattle Mariners, fresh off a near World Series run, are eyeing a blockbuster trade for Fernando Tatis Jr. to bolster their offense. This move, fueled by a strong farm system and a championship window,

The Seattle Mariners had reportedly considered retaining first baseman Josh Naylor to be their top priority in free agency. Their wish has reportedly come true.

Third base coach Kristopher Negron, who spent six seasons in the Seattle Mariners organization, is reportedly heading to Pittsburgh to be its bench coach.

The Seattle Mariners have every reason to feel proud about the way their 2025 season turned out. Seattle reached the 90-win mark, brought home an American Leagu

The Seattle Mariners’ Cal Raleigh names his clubhouse MVP, praising free agent Josh Naylor in a recent interview.