Mariners Predicted to Trade for $90 Million WBC Breakout Star

Masataka Yoshida could complete Seattle's outfield trio with Randy Arozarena and Julio Rodriguez.

Published on Mar. 8, 2026

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The Seattle Mariners are predicted to trade with the Boston Red Sox to acquire outfielder Masataka Yoshida, who is having a breakout performance in the 2026 World Baseball Classic. Yoshida is currently in the fourth year of a five-year, $90 million contract with the Red Sox, and the Mariners could work with Boston to eat some of that contract in order to add Yoshida's professional bat to their lineup alongside Randy Arozarena and Julio Rodriguez.

Why it matters

The Mariners lost some key offensive pieces in the offseason, and adding Yoshida would give them another proven hitter to complement their young star outfielders Arozarena and Rodriguez. Yoshida's on-base skills and run-producing ability could be a major boost for a Mariners offense that is looking to keep pace with the other AL powerhouses.

The details

According to FanSided's Chris Landers, the Mariners have already addressed their infield needs by acquiring Brendan Donovan, but they still have holes to fill in the outfield and at designated hitter. Landers believes that trading for Yoshida would be a better move than trying to find another infielder, as Yoshida's professional approach at the plate would be a perfect fit alongside Arozarena and Rodriguez.

  • Yoshida is currently in the fourth year of a five-year, $90 million contract with the Boston Red Sox.
  • Yoshida is having a breakout performance for Team Japan in the 2026 World Baseball Classic.

The players

Masataka Yoshida

A 29-year-old outfielder for the Boston Red Sox who is currently in the fourth year of a five-year, $90 million contract.

Randy Arozarena

A 27-year-old outfielder for the Seattle Mariners.

Julio Rodriguez

A 22-year-old outfielder for the Seattle Mariners.

Brendan Donovan

A 25-year-old infielder acquired by the Seattle Mariners in the offseason.

Chris Landers

A writer for FanSided who predicted the Mariners will trade for Masataka Yoshida.

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What they’re saying

“The Mariners went a long way toward solving their infield problem by landing Brendan Donovan, but I'm still not fully sold on the quality of this lineup in comparison to the AL's other heavyweights. Both DH and the third outfield spot alongside Julio Rodriguez and Randy Arozarena could use some work, with some combination of Luke Raley, Victor Robles, Dominic Canzone and Rob Refsnyder currently slated to form a platoon depending on the day's pitching matchup. But none of those names (save for maybe Canzone) inspires a ton of confidence, and Yoshida would add another professional hitter to an offense that could very much use it.”

— Chris Landers, Writer (FanSided)

What’s next

The Mariners will need to work out a trade with the Boston Red Sox to acquire Masataka Yoshida, which could involve the Mariners eating some of the remaining $90 million on Yoshida's contract.

The takeaway

Adding Masataka Yoshida to their outfield would give the Mariners a formidable trio alongside Randy Arozarena and Julio Rodriguez, providing a significant boost to their lineup as they look to keep pace with the other American League powerhouses.