SEATTLE — In a surprising development just before the official start of the MLB season, the Seattle Mariners officially acquired Left-Hander Josh Simpson from the Miami Marlins via cash considerations, a swift move but one that carries both hope and significant risk for the Mariners. This information was confirmed on the same day the team placed one of their key hopes on the bullpen – a key area of concern for Seattle last season.
In a related development, the Mariners also placed Left-Hander Logan Evans – one of their promising talents – on their “60-day injured list” following a serious elbow injury, leaving fans worried about the young shooter’s long-term absence.
The Mariners have long been considered a team with strong pitching, but last season they showed a clear weakness in defending against left-pointers, which made them struggle in tight games. The signing of Simpson was an almost immediate response from the team’s management, especially after having to change their bullpen rotation due to Evans’ injury.

Simpson, 28, had a mixed 2025 season with the Marlins: he had some excellent Triple-A bullpen performances but struggled in MLB with a high ERA and a few forgettable “breaks.” However, his xFIP and SIERA are rated lower than his ERA, suggesting that his statistics are better than expected and offer the Mariners hope for improved performance.
Simpson isn’t a name that immediately comes to mind when fans hear about a trade deadline. He only made his MLB debut in 2025, with 31 appearances, a 4-2 record, and an ERA of 7.34 – a figure that raised eyebrows for many.
But despite the unimpressive initial statistics, Simpson has some promising stats:
A higher-than-average groundball percentage (over 50%), a valuable stat for the Mariners, who prioritize defending against powerful shots.
A strikeout percentage of nearly 24%, a not-so-low rate for a shooter who hasn’t yet hit his stride.
These analyses led experts to believe that Simpson could be a “tactical gamble” – a shooter with good tools, but needing the Mariners to “re-polishing” him to reach his full potential.
The Mariners also rushed this trade due to Logan Evans’ injury; the rising star is likely to start the new season on the long-term IL due to elbow surgery. The management was forced to upgrade the bullpen immediately, not only to meet tactical requirements, but also to ensure pitching depth ahead of crucial games.
Evans, 24, was highly regarded within the Mariners system after an impressive performance in 2025 before moving up to MLB. However, a UCL injury forced him to undergo surgery and will keep him out for almost the entire 2026 season, prompting Seattle to act urgently.
Immediately after Simpson’s recruitment was announced, the Mariners fan community reacted strongly. On social media, many fans showed their familiarity but caution:
“Simpson has great tools… but the Mariners need more than that for the bullpen.”
“I can’t wait to see him perform, hopefully the bullpen will be stable.”
“Evans’ long absence is a blow, but the management has an answer.”
Some even jokingly called this a “last trade for cash”—but everyone agrees the Mariners need pitching depth to improve after their ALCS failure last season.
Simpson will have a chance to compete for the starting bullpen spot in the upcoming Spring Training, where the Mariners want to see his form and adaptability to the team’s pitching system. Seattle’s coaches and pitching experts have a schedule of testing various pitchers in the coming weeks, and Simpson will have to prove he’s worthy of that trust.
Additionally, the Mariners have other left-handed pitchers in their 40-man roster, but Simpson is currently the name given the biggest chance to compete in the 2026 season.
Josh Simpson’s move to the Pacific Northeast to join the Mariners wasn’t just an anonymous trade, but a risky yet hopeful strategy.
The Mariners paid the price with cash, sacrificing the long-term health of Evans to gain the necessary pitching depth. Simpson, a pitcher with decent base stats but lacking consistency, now has the opportunity to reinvent his career in Seattle, where the bullpen has been transformed into a real powerhouse through the pitching “laboratory.”
With the Mariners eager to reach their first World Series in team history, any addition could be decisive, and Simpson – though a gamble – could be the unexpected piece that completes Seattle’s 2026 roster.