The Seattle Mariners have been stockpiling catchers ahead of spring training, which should help protect Cal Raleigh this year.

When MLB Pipeline unveiled its Top 100 Prospects entering the 2026 season last week, the Mariners paced the sport with seven among that group. And each of them will be in big league camp when the Mariners begin Spring Training next month.

The Seattle Mariners announced their list of 2026 Spring Training non-roster invite players on January 30. Seattle will bring several of their past first-round picks to big league camp, including pitcher Kade Anderson and infielder Colt Emerson.

As the Mariners look to go on an even deeper playoff run in 2026, there is one free agent remaining Seattle must sign.

Mariners invite 15 pitchers, 19 position players to spring training, including 15 top prospects

The Seattle Mariners (4-10) have two full weeks of Cactus League play behind them. Let’s take a look at some important developments in from last week: Seattle Mariners reliever Taylor Guilbeau pitches in a spring training game against the A’s on ...

The Seattle Mariners put out a brutal injury update on Friday afternoon, announcing that starting pitcher Logan Evans will miss the entire 2026 season because of a Tommy John surgery that was performed Friday, Jan. 23.

With Brendan Donovan off the board, here are the prominent MLB trade candidates still worth monitoring ahead of Spring Training, from Tarik Skubal to Jasson Dominguez.