Mariners Trade: Seattle Acquires Josh Simpson from Marlins | MLB Offseason Moves (2026)

The Seattle Mariners' Left-Handed Revolution: A Controversial Move?

In a surprising turn of events, the Seattle Mariners have bolstered their bullpen with a new left-handed pitcher, Josh Simpson. This move has sparked intrigue and raised questions among fans and analysts alike. But here's where it gets interesting...

The Mariners, known for their strategic roster moves, have acquired 28-year-old reliever Simpson from the Miami Marlins. With Simpson's addition, the team now boasts an impressive four left-handed relievers on their 40-man roster for spring training. But is this an advantage or a potential weakness? Let's delve deeper.

Simpson, standing at 6'2", made his MLB debut in 2025 with the Marlins, appearing in 31 games. His stats from that season paint an intriguing picture: a 7.34 ERA, a high WHIP of 1.83, and an opponent batting average of .272. However, his performance against left-handed batters was notably better, with a batting average against of just .207. This could be a key factor in the Mariners' decision.

The team's previous reliance on Gabe Speier, the only consistently effective left-handed reliever last season, has now shifted with the addition of Simpson and other offseason acquisitions. But will this abundance of left-handers pay off?

Simpson's pitch repertoire includes a four-seam fastball and sinker, both clocking in at around 94 mph. However, he heavily relied on breaking pitches in the big leagues last year. His most frequently used pitch was a sweeper, averaging 82.4 mph, followed by a curveball at 80.6 mph. These pitches could be crucial in his success with the Mariners.

And this is the part most people miss: Simpson was designated for assignment by the Marlins after they signed another left-handed reliever, John King. Could this be a sign of things to come for Simpson in Seattle? Only time will tell.

So, what do you think? Is the Mariners' left-handed revolution a smart move or a risky gamble? Let's discuss in the comments! Will Simpson prove to be a valuable asset, or will the team's strategy backfire? Your thoughts are welcome!

Mariners Trade: Seattle Acquires Josh Simpson from Marlins | MLB Offseason Moves (2026)
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