Baseball Things Weekly Roundup

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• 5 Prospects with Top-10 upside, the Mariners' off-limits list, trading for Cruz

  Which 5 prospects outside the Mariners' current Top 10 have a chance to get thee in the next year or two? Which prospects might Seattle deem nearly untouchable? Is Oneil Cruz a viable trade target? What might be the cost?

  

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• Luis Castillo: The problems, fixes, trade value, fits

  Luis Castillo hasn't been the same the last year or two. What's gone wrong, how to fix it, his trade value and potential fits are all discussed in this episode.

• Rob Refsnyder: Fit, Cost, Payroll Impact

  Let's talk about the Mariners' latest acquisition -- OF Rob Refsnyder -- and how it impacts the club's efforts leading up to the 2026 season.

  

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• Big OF bats, Jazz Chisholm, Cole Young, Colt Emerson’s 2027 position

  Might the Mariners find a trade with the Yankees or Cubs? Is Cole Young off the radar? A what-if scenario with Colt Emerson.

  

Scouting the Mariners' Rule 5 additions (and losses)

The Seattle Mariners selected two players in Monday’s Rule 5 Draft, and lost another. Here’s who they are, with scouting notes.

Mariners After MidnightJason A. Churchill

Analysis: Mariners acquire Jose A. Ferrer for Harry Ford, Isaac Lyon

The Seattle Mariners answered a bunch of questions in one trade Saturday, acquiring left-handed reliever Jose A. Ferrer (no relation) from the Washington Nationals for catcher Harry Ford and right-handed reliever

Mariners After MidnightJason A. Churchill

TRADE: Mariners acquire RHP Alex Hoppe for C Luke Heyman

Tuesday, the Seattle Mariners stayed busy. Just hours after the Josh Naylor contract was made official, the club acquired right-handed pitcher Alex Hoppe, a 26-year-old who finished 2025 in Triple-A Portland.

Mariners After MidnightJason A. Churchill

Top 40 MLB Free Agents

This year’s free-agent crop is mid-tier overall, but offers a few plus corner bats, lefty starters, and a handful of high-leverage relievers.

Mariners After MidnightJason A. Churchill

Top 10 Remaining Free Agent Targets for the Mariners

The 2026 Seattle Mariners likely turn over the roster versus what the club opened the season with a year ago. But it also may look substantially different from the year-end version, too.

Mariners After MidnightJason A. Churchill