Despite some glaring needs for offense, the Mariners only ended up tinkering a bit with their lineup after a pretty quiet offseason.
Major League Signings
2025 spending: $11.25MM
Total spending: $11.25MM
Option Decisions
Trades & Claims
Notable Minor League Signings
- Rowdy Tellez, Trevor Gott, Josh Fleming, Adonis Medina, Shintaro Fujinami, Casey Lawrence, Garrett Hill, Jacob Nottingham, Jack Lopez, Jhonathan Diaz, Luis F. Castillo, Neftali Feliz (released), Drew Pomeranz (released), Jesse Hahn (released)
Extensions
Notable Losses
After a few months of scouring the free agent and trade markets for a replacement for second baseman Jorge Polanco, the Mariners ended up signing….third baseman Jorge Polanco, brought back on a one-year deal worth $7.75MM in guaranteed money, and with a vesting option that could guarantee Polanco at least $6MM in 2026. Polanco has played the vast majority of his nine MLB seasons as a middle infielder, but he does have 24 games of experience as a third baseman, with 15 of those games coming as recently as the 2023 season when he was still a member of the Twins.
Polanco’s defensive metrics as a second baseman were mostly subpar, and his lack of a strong throwing arm raises questions about how well he’ll translate to the hot corner. However, the bigger issue might be whether or not Polanco can rebound from a rough year at the plate. The infielder hit only .213/.296/.355 over 469 plate appearances with Seattle in 2024, while also missing a month due to a hamstring strain, and undergoing surgery in October to correct a lingering left knee problem.


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