Seattle Mariners: News, Scores, Stats, Headlines, Injury Updates & More

Jason Kanzler is ready to `ride the lightning’ as Mariners’ new manager

He has been on Seattle’s radar before, first when they interviewed him for a major league hitting coach role back in 2021.

Associated Press,

Associated Press,

Seattle Mariners hire Chicago Cubs farm director Jason Kanzler as manager

Associated Press,

Associated Press,

Bednar, Suzuki and Arozarena are among 8 MLB players receiving $23.15 million qualifying offers

Associated Press,

Associated Press,

MLB: Wildcard-Boston Red Sox at New York Yankees

Why did Cam Schlittler and Jacob Misiorowski break out, but Eury Perez and Bubba Chandler didn’t?

Eric Samulski,

Eric Samulski,

American League Championship Series: Tampa Bay Rays v Cleveland Guardians - Game Five

Guardians manager Stephen Vogt says he’ll be back with club, dismisses rumors about move to Mariners

Associated Press,

Associated Press,

MLB: NLDS-Los Angeles Dodgers at Atlanta Braves

2026 Fantasy Baseball Misses: Where did we go wrong on Edwin Diaz, Kyle Bradish?

Eric Samulski,

Eric Samulski,

Dan Wilson out as manager of the Seattle Mariners after disappointing season

Associated Press,

Associated Press,

Rotoworld Player News

Jason Kanzler

SEA Manager

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Joel Sherman of the New York Post reports that the Mariners have hired Tanner Swanson to be their next bench coach.

Swanson has been in the Yankees’ organization, serving as their minor league catching coordinator since November of 2019. He also served as the bench coach for Great Britain during the 2026 World Baseball Classic. He’ll work with first-time skipper Jason Kanzler to try to get the Mariners back on track after a disastrous 2026 campaign.
Jason Kanzler

SEA Manager

MLB.com’s Daniel Kramer reports that the Mariners are hiring Jason Kanzler as their manager.

Kanzler has spent the past three seasons as the Cubs’ director of player development. The 36-year-old was a 20th-round pick of the Minnesota Twins in the 2013 MLB Draft and played three seasons in the minors, primarily as a center fielder. Kanzler is the 22nd manager in Mariners franchise history and will be the second-youngest manager in the Majors behind 34-year-old Nationals manager Blake Butera, who was 33 at the time he was hired.
Randy Arozarena

FA Left Fielder #56

Mariners extended a one-year, $23.15 million qualifying offer to OF Randy Arozarena.

Arozarena is a virtual lock to decline the qualifying offer and head to the open market after the strongest season of his career at the plate, slashing .281/.381/.484 with 113 runs scored, 26 homers, 79 RBI and 26 steals across 670 plate appearances. He enters his age-32 campaign on the heels of his sixth consecutive 20-homer, 20-steal season. There are some question marks from a defensive standpoint, but he remains a consistent all-around fantasy contributor that will come off the board in the early rounds of drafts next year.
Weston Wilson

SEA 3rd Baseman #31

Mariners sent INF/OF Weston Wilson, LHP Josh Simpson, RHP Troy Watson, INF Will Wilson and INF Patrick Wisdom outright to Triple-A Tacoma.

Not really any tough calls here. Weston Wilson did play in 54 games for the Mariners after joining the team in mid-June, but he hit just .192/.263/.296 in 137 plate appearances.
Isaac Mattson

SEA Relief Pitcher #72

Mariners claimed RHP Isaac Mattson off waivers from the Pirates

Mattson struggled in 2026 with a 5.35 ERA in 38 2/3 innings out of the bullpen, but the 31-year-old was much better for the Pirates in 2025, posting a 2.45 ERA, 1.13 WHIP, and 45/19 K/BB ratio in 47 2/3 innings. The Mariners will try to help him get back to that level of production.
Cole Young

SEA 2nd Baseman #2

Cole Young won his first Gold Glove at second base in balloting announced Sunday night.

Second base seemed like the AL’s most interesting call, being that DRS thought Young was far-and-away the AL’s best, whereas OAA had him below average. Jazz Chisholm Jr., who didn’t finish in the top three, had the top OAA and a below average DRS. Kansas City’s Michael Massey was the only player deemed clearly above average by both.
Michael Arroyo

SEA 2nd Baseman #96

Michael Arroyo underwent elbow surgery Wednesday to “clean up cartilage and brace a chronic injury to his UCL,” according to the Mariners.

The announcement says Arroyo will return to game action in April. Given that this seems to be internal brace surgery, Arroyo might be limited to DHing for a while into his return from surgery. Arroyo, who turns 22 next week, made his MLB debut in September and hit .371/.439/.514 in 15 games. That was going to put him in position to challenge for a spot next spring, though there was a good chance he’d open in Triple-A. Now it seems like he won’t be an option until May or maybe June.
Jerry Dipoto

SEA General Manager

The Mariners are hiring CJ Gillman as their hitting coach, according to The Athletic.

Hiring a hitting coach before hiring a manager is a little odd, but the Mariners obviously wanted Gillman back. He was employed by the team as a minor league hitting coordinator from 2022-25 before spending last season as the Nationals’ director of hitting.
Grant McCray

SEA Center Fielder #58

Mariners claimed OF Grant McCray off waivers from the Giants.

McCray, who turns 26 in December, has hit .170/.235/.323 in 247 plate appearances since debuting with the Giants in 2024. He has gone 13-for-13 stealing bases, but he strikes out far too much for someone with little power and he’s not a particularly strong defender in the outfield. Better players will clear waivers.
Andrés Muñoz

SEA Relief Pitcher #75

Mariners exercised RHP Andrés Muñoz’s $9 million club option for 2027.

Muñoz met all of his bonus criteria with 48 games last season, increasing the value of the option year by $1 million. The Mariners also have a $10 million option for 2028 on the deal they signed with Muñoz way back in Nov. 2021. Muñoz is coming off his worst season, finishing with a 4.24 ERA and 10 blown saves in 38 tries, but he still did strike out 89 in 57 1/3 innings. Bringing him back for $9 million was a no-brainer.