While Japanese superstar Munetaka Murakami is grabbing most of the headlines this offseason, there’s another name out of Japan quietly rising toward the top of MLB front offices’ wish lists — and he pitches, not hits.
Tatsuya Imai, a 27-year-old right-handed starter from the Saitama Seibu Lions, is expected to be posted soon, and he might just be MLB’s most overlooked potential ace.
Elite Production in Japan — And Perfect Timing
Imai is coming off the best season of his professional career — and one of the best pitching campaigns in Nippon Professional Baseball this year:
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1.92 ERA
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0.89 WHIP
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178 strikeouts in 163.2 innings
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45 walks (2.5 BB/9, career best)
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9.8 K/9 with a career-high 27.8% strikeout rate
He was named an NPB All-Star for the second straight season and even threw in a combined no-hitter, further solidifying his status as one of Japan’s top arms. The timing couldn’t be more ideal for a leap to Major League Baseball.
Tatsuya Imai would be my top target this offseason for the Dodgers pic.twitter.com/q6KOAX3jTI
— ante (@Anteupped) November 9, 2025
Power Stuff + Command = Ace Potential
What separates Imai from most posting candidates is his mix of power, control, and pitch repertoire that already mirrors MLB success.
Pitch Arsenal & Velocity
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Four-seam fastball sits at 95 MPH and touches 98–99 MPH
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Wipeout slider — his most effective out pitch
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Splitter — used primarily to neutralize left-handed hitters
That’s front-of-the-rotation velocity paired with command, sequencing, and strikeout ability. Very few pitchers hit free agency — from any league — with that kind of profile.
Why Isn’t He Being Talked About Like Yamamoto or Senga?
Simple: he doesn’t have the same international spotlight yet.
He isn’t a household name like Murakami, nor did he dominate the World Baseball Classic like Yoshinobu Yamamoto. But scouts rave privately about his competitiveness, quiet leadership, and MLB-ready repertoire.
He’s not a “developmental project.” He can slide into a big-league rotation on Opening Day.
Tatsuya Imai is number one pic.twitter.com/6boza8rvPn
— そーだ (@saaasami_katu) November 9, 2025
Projected Market & Teams Interested
Multiple contenders and large-market teams have already shown interest in Imai, including:
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Los Angeles Dodgers
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Boston Red Sox
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San Diego Padres
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New York Mets
He’s expected to command a deal in the $150–$200 million range over 5–6 years — comparable to past NPB aces like Kodai Senga and slightly below Yamamoto’s tier.
Perfect Fit for Front or Middle of a Rotation
Given his velocity, command, and durability, Imai projects as either:
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A No. 1 or No. 2 starter on a rebuilding team, or
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A high-end No. 3 on a contender loaded with pitching depth
Either way, he upgrades a pitching staff the second his name is on a contract.
Final Take: MLB’s Hidden Ace of 2025
While most eyes are fixed on Murakami’s power bat, the real under-the-radar prize this offseason might be Tatsuya Imai.
A 1.92 ERA, elite strikeout rates, upper-90s velocity, and command that keeps improving, he’s the type of pitcher that changes a franchise’s trajectory.
Murakami may be the headline.
But Imai might be the steal.
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