The Seattle Mariners have an uncomfortable connection to the 2026 MLB postseason after former organizational players Freddy Peralta and Jake Bauers earned Championship Series MVP honors with their respective teams.

Peralta helped the Tampa Bay Rays reach the World Series by delivering a standout performance in the American League Championship Series. Bauers played a key role in the Milwaukee Brewers’ National League Championship Series sweep of the Los Angeles Dodgers.

Both players are now preparing for baseball’s biggest stage, while their former ties to Seattle have revived questions about the Mariners’ past roster decisions.

Freddy Peralta Trade Revisited After ALCS Success

The Mariners traded Peralta to Milwaukee in December 2015 as part of a deal to acquire first baseman Adam Lind. Seattle also sent prospects Carlos Herrera and Daniel Missaki to the Brewers in the transaction.

At the time, Peralta was a young minor-league pitcher whose future major-league impact remained uncertain. The Mariners were looking for immediate help at first base, making Lind an attractive option for their lineup.

Lind hit .239 with 20 home runs during his only season in Seattle. Peralta, meanwhile, developed into an established major-league starter, making his postseason success a reminder of the long-term value that can emerge from a prospect.

Peralta strengthened that connection by winning twice against Cleveland in the ALCS, including the series-clinching Game 6. His performance has renewed debate about whether Seattle received enough value from the trade.

Jake Bauers’ Breakout Raises Questions About Player Development

Bauers represents a different kind of what-if for the Mariners. Unlike Peralta, who was traded before reaching the majors, Bauers played for Seattle during the 2021 season but struggled to establish himself as a productive hitter.

He finished his Mariners stint with a .220 batting average, a .297 on-base percentage and a .275 slugging percentage, hitting two home runs across 72 games.

His subsequent success with Milwaukee highlights how dramatically a player’s career can change after leaving one organization. Bauers’ postseason production has prompted questions about the adjustments and development work that helped him become a more effective contributor.

However, his later performance does not necessarily mean Seattle should have retained him indefinitely. The challenge for any team is identifying which struggling players can improve and which are unlikely to deliver greater value.

What the Mariners Can Learn From These Departures

Peralta and Bauers offer different lessons for Seattle’s front office. Peralta’s career illustrates the risks of trading young pitching for short-term offensive help, while Bauers’ development raises questions about how teams evaluate and improve hitters.

Neither case alone proves that the Mariners made the wrong decision. Player development is unpredictable, and trades must be judged against the needs and circumstances that existed when they were completed.

Still, both postseason awards give Seattle reasons to examine its scouting, player-development systems and approach to evaluating trade returns as it plans for the next season.

Seattle Mariners Face Important Offseason Decisions

The Mariners enter the offseason with questions about how to build a roster capable of competing consistently. Their decisions on trades, free-agent additions and player development will help determine whether the team can turn potential into postseason success.

The Peralta deal is a reminder that prospects can become valuable major-league contributors years after a trade. Bauers’ rise shows that a player’s development may continue long after an initial opportunity with a team has ended.

For Seattle, the challenge is to use those lessons when evaluating its next group of players and deciding which assets to keep, develop or trade.