Infielder Munetaka Murakami (25), who had sought an MLB move from the Yakult Swallows via the posting system, agreed to a two-year, $34 million deal with the Chicago White Sox. The club announced the signing on December 21, 2025. The negotiating deadline was 5 PM Eastern on December 22, so the deal came down to the wire.

Murakami's posting window opened on November 7, giving a 45-day negotiating period. Concrete details about his destination stayed largely out of view until the end, with talks proceeding behind the scenes with multiple clubs.

Far Below Early Expectations

In 2022, Murakami hit 56 home runs—the most in a single season by a Japanese-born player—and became NPB's youngest Triple Crown winner at 22. On the strength of that left-handed power, some projections had reached eight years and $180 million. The stove-league site Trade Rumors had ranked him fourth overall among free agents.

The actual deal, however, landed at two years and $34 million. Per ESPN and others, several concerns cooled his market:

  • Swing-and-miss: a strikeout rate above 28% over his last three seasons
  • In-zone contact: 72.6%, which would rank near the bottom in MLB terms
  • Defensive questions: primarily a third baseman in Japan, occasionally at first, but likely to see more time at DH in the majors
  • Injury: he played just 56 games in the 2025 season due to an oblique injury

With a large contract widely seen as a lock, several contenders turned cautious.

Why the White Sox?

The White Sox have lost 100+ games three years running since 2023, including a modern-era-worst 121 losses in 2024, and endured another difficult 2025—one of the most rebuilding-heavy situations in MLB.

At first glance it prompts a "why this team?" But there is logic for both sides. For Murakami, a power-starved club offers a clear path to regular playing time and a chance to adjust to the majors without the pressure of a contender. Chicago is a big market, yet without the intensity that surrounds the crosstown Cubs.

For the White Sox, a short deal limits risk while adding the kind of power bat usually out of reach, with upside from a young core and potential trade value if it works. Per MLB.com, the team's .373 slugging percentage this season ranked second-to-last in the majors.

The Two-Year Strategy

The length reflects Murakami's aim. According to ESPN, while several clubs offered longer deals at lower salaries, Murakami chose a shorter, higher-paying one. The plan is to prove he can handle elite MLB arms, then return to free agency after 2027 for a larger contract.

History shows Japanese position players rarely match their NPB numbers in year one. If he spends two years sharpening his approach against major-league pitching and delivers, he could command far more as a 27-year-old free agent. A strong showing could even make him a mid-2027 trade chip for a contender.

Japanese Players and the White Sox

The White Sox have rostered Japanese players before. Tadahito Iguchi (2005–2007) helped win the 2005 World Series, and Shingo Takatsu (2004–2005) and Kosuke Fukudome (2012) also wore the uniform. Takatsu, notably, later managed Yakult during Murakami's time there.

Contract Details

  • Term: two years
  • Total: $34 million
  • Number: 5
  • Posting fee: roughly $6.58 million to Yakult
  • Eligible for free agency after the 2027 season, without going through arbitration

Murakami was formally introduced at a press conference at 11 AM local time on December 22.

An Unusual Offseason Market

This offseason's free-agent market moved slowly, with several stars unsigned for weeks. The stalled markets for players who overlap with Murakami's position—such as outfielder Kyle Tucker and third baseman Alex Bregman—are seen as one reason his deal ended up short.

From Kumamoto to Chicago

Murakami signed with Yakult in 2018 out of Kumamoto's Kyushu Gakuin High School. Across eight NPB seasons from 2018 to 2025, he hit 246 home runs with 647 RBIs, winning one batting title, three home run titles, and two RBI titles, and earning back-to-back league MVPs in 2021 and 2022 as Yakult won consecutive Central League pennants.

His 2022 Triple Crown line was a .318 average, 56 home runs, and 134 RBIs—at 22, the youngest ever in NPB. In the 2023 World Baseball Classic he helped Japan to the title, launching a 115.1 mph home run off Merrill Kelly in the final against the USA. In his last NPB season in 2025, an injury limited him to 56 games, yet he hit 22 home runs for a seventh straight 20-homer season—matching the White Sox team high (Lenyn Sosa).

Challenges and Outlook

The White Sox hold the #1 overall pick in the 2026 MLB Draft, with UCLA shortstop Roch Cholowsky considered the likely selection. As young infielders develop, where Murakami slots in defensively is one thing to watch.

The challenge is clear: adapting to major-league velocity and breaking balls, cutting his strikeout rate, and translating his power to the biggest stage. His growth over these two years will shape his future—and each at-bat will speak to both the club's rebuild and his own career.