Grant Knipp will miss the entire 2025 season with Tommy John surgery, but he's still someone to keep an eye on.

The Mariners will need to trade some prospects in order to become World Series contenders, and here are two that should be on the move.

Seattle needed a massive upgrade at first base and have turned to their top prospect with the MLB postseason on the horizon.

Three different national outlets agree that the Seattle Mariners get an A for their trade for two-time All-Star third baseman ...

SEATTLE (AP) — The Seattle Mariners acquired left-handed reliever Caleb Ferguson from the Pittsburgh Pirates on Wednesday, giving their bullpen another arm as they make a playoff push. Seattle sent ...

This article was originally published on www.si.com/onsi/minor-league-baseball as Seattle Mariners Outfield Prospect Wins ...

The Mariners added another corner infielder to their 26-man roster on the eve of Thursday’s 3 p.m. PT Trade Deadline, but the ...