Fastball On SI - Sports Illustrated

The Seattle Mariners let this reliever go early in the offseason, and now, he'll stay in the American League West.

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The Seattle Mariners could have a star emerging in the minor leagues...

The Seattle Mariners could use another infielder...

The Philadelphia Phillies and Seattle Mariners could come together on a huge trade this offseason...

The Seattle Mariners could use a bit more zip in the middle of the lineup...

Sometimes, the offseason carousel spins too quickly to catch all the transactions in the moment, especially at the minor-league level. It's been a winter of hea

The Seattle Mariners aren't out of the picture for Ketel Marte, but the odds don't appear to be in their favor.

Will the Seattle Mariners bring back a fan favorite slugger to play third base?

The Seattle Mariners might very well trade for Brendan Donovan, but they also very well might not.

Schedules

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The Phillies are expected to move on from a bad contract this winter.

History

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The Mariners made a key trade at the deadline got a lot out of their acquisition. Letting him walk in free agency would be a mistake.

Minors

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The Jake Bird trade hasn't gone as planned for the New York Yankees, considering the former Colorado Rockies reliever was just optioned to Triple-A.

Fantasy

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Shota Imanaga has allowed just two earned runs across 18.1 innings during the 2025 season. On Wednesday, he faces a Texas Rangers team with an American League-most eight wins.

Podcasts

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Right-handed pitcher Cade Horton has a 1.24 ERA in 29 innings with the Triple-A Iowa Cubs this season. Fastball On SI columnist Jack Ankony shared his thoughts on the move in Friday's episode of The Payoff Pitch podcast.

Injuries

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The two-time All-Star will have an interesting market after returning from his injury in 2025.

Betting

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If the Phillies lose him, here are two teams that should be all in on him.

More MLB

The Milwaukee pitcher made dubious history in May.

Toronto is making moves to shore up its offense.

The Yankees have joined the Red Sox, Cubs, Dodgers, Giants and Blue Jays in pursuit of free agent shortstop Bo Bichette.

The impending signing of Imai will bolster Houston's starting rotation.

What a year it was.

Arizona Diamondbacks general manager Mike Hazen hopes his team will make a decision on star second baseman Ketel Marte soon.

Anthony Rendon’s tenure with the Angels has reached its end.

Speedy outfielder Esteury Ruiz is being traded from the Dodgers to the Marlins.