Fastball
The Mariners have made their latest signing official, adding depth at catcher as roster moves continue to take shape.
Curt Bishop|

Latest News

News

The Seattle Mariners wanted to keep Jorge Polanco, but simply got outbid by the New York Mets.
Jackson Roberts|
The Seattle Mariners won't have Jorge Polanco back in 2026...
Patrick McAvoy|
The Boston Red Sox could pluck a star slugger away from the SeattleMariners in free agency...
Zach Pressnell|
The Seattle Mariners are busy...
Patrick McAvoy|
A new report links the Rays to a Diamondbacks three-time All-Star. Learn what this could mean for Tampa Bay’s offseason plans.
Curt Bishop|
A Mariners insider shared a disappointing prediction on Jorge Polanco’s free agency. Here’s what the latest report means for Seattle’s offseason plans.
Curt Bishop|
The Seattle Mariners could lose one of their stars to the Boston Red Sox in free agency...
Zach Pressnell|
The Seattle Mariners know they have a good bullpen piece on their hands, even if it came at a high cost.
Jackson Roberts|

Schedules

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

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

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

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

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

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

Betting

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

More MLB

With the winter meetings officially behind us, Major League Baseball’s rumor mill continues to heat up. A number of contenders are doing all they can to fortify
Ryan Phillips|
Tyler Glasnow's name has been in trade conversations this offseason.
Tim Capurso|
García spent the last six seasons in Texas, helping them to their 2023 World Series title.
Madison Williams|
The small-but-mighty left fielder generated Rookie of the Year buzz this season.
Patrick Andres|
Will these two NL clubs pull off a trade this offseason?
Tom Dierberger|
When Rivers takes his first snap under center in Week 15, he'll officially join a list of pro athletes who became grandfathers during their careers.
Tim Capurso|
The St. Louis Cardinals signed longtime Dodgers pitcher Dustin May to a one-year deal.
Blake Silverman|
The 38-year-old posted his best season in years in 2025.
Patrick Andres|