The Seattle Mariners made the first significant news of the young offseason on Sunday night, inking first baseman Josh Naylor to a five-year contract. Naylor, acquired at last season’s deadline, quickly became a fan favorite in Seattle,

Naylor was linked to the Red Sox during the trade deadline and was deemed a “best fit” for Boston this offseason. Red Sox chief baseball officer Craig Breslow didn’t commit to Triston Casas being the Red Sox’ starting first baseman in 2026, which led to questions about potential fits at the corner position if they were to look elsewhere.

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

Seattle Mariners second baseman Jorge Polanco elected to turn down his $8 million contract option and enter the free agent market.