Spring training is here, and with it comes the excitement of position battles and the quest for roster spots. These competitions often spotlight players who are easy to root for, whether they’re promising prospects, minor-league veterans seeking their big break, or seasoned players aiming for one more season.
While these battles are thrilling to watch, they also offer insights into a team's trajectory for the upcoming season. A roster with numerous open spots might signal instability, potentially leading to a challenging season. However, a few strategic competitions can elevate player performance and strengthen the team.
The Seattle Mariners, fresh off their deepest playoff run in history, are entering spring training with a notably stable roster. According to Jerry Dipoto, the Mariners' president of baseball operations, this year marks the fewest open roster spots in over a decade.
"We have a pretty stable everyday club," Dipoto shared on MLB Network. "If everyone stays healthy, opportunities are limited, mainly in the bullpen."
Dipoto estimates only two or three uncertain spots on the 26-man roster. Let’s dive into these areas.
The Bullpen
The Mariners are not alone in having bullpen spots up for grabs. Six of the eight positions seem locked, barring injuries.
Returning right-handers Andrés Muñoz, Matt Brash, Eduard Bazardo, and Carlos Vargas, along with left-hander Gabe Speier, form a solid core. Newcomer Jose A.
Ferrer, acquired in an offseason trade, is expected to be a key left-handed option.
The final two spots are open to competition, featuring both familiar faces and new talent. Returning contenders include right-handers Casey Legumina, Troy Taylor, Blas Castaño, and Domingo Gonzalez. Legumina brings experience, while Taylor offers high potential despite a challenging 2025 season.
Newcomers like right-handers Cooper Criswell, Ryan Loutus, Cole Wilcox, and Yosver Zulueta, along with lefties Josh Simpson and Robinson Ortiz, add depth. Criswell, with a mix of starting and relieving experience, could fill a versatile role following Logan Evans' injury. Zulueta, with his powerful arsenal, is another intriguing option, having turned down a chance to pitch for Cuba in the World Baseball Classic.
Backup Catcher
The Mariners face a decision on who will back up AL MVP runner-up Cal Raleigh. Andrew Knizner seemed the favorite after signing in December, but Mitch Garver's recent minor-league deal adds competition. Knizner's career slash line stands at .211/.281/.316, while Garver, familiar with the Mariners' pitching staff, has a .187/.290/.341 line in Seattle.
Jhonny Pereda, acquired from the Twins, is another contender. With Raleigh competing in the WBC, Knizner, Garver, and Pereda will have ample chances to prove themselves.
The Surprise Factor
Dipoto's comments suggest room for surprises in camp. Top prospect Colt Emerson is a name to watch.
Ranked in the top 10 by MLB Pipeline and Baseball America, Emerson impressed in 2025, climbing from High-A to Triple-A. His spring training performance could force the Mariners to consider him for the 26-man roster.
While Emerson’s need for regular at-bats might be a consideration, his talent could make him hard to overlook, echoing Julio Rodríguez's rise in 2022.
As the Mariners gear up for the season, these position battles will be pivotal. With a blend of stability and potential surprises, Seattle fans have plenty to look forward to.