How Japanese pitching phenom’s posting could twist Yankees’ offseason agenda
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Follow UsNEW YORK — The Yankees enter the 2026 season facing one of their most fragile pitching situations in recent memory. Three of their starting pitchers are set to miss Opening Day because of injuries, forcing general manager Brian Cashman to look beyond traditional routes to rebuild the rotation.
That search has brought attention halfway around the world — to Japan — where right-hander Tatsuya Imai could become the unexpected key to reshaping the Yankees’ offseason plans.
Rotation in turmoil after playoff collapse
The Yankees’ 2025 season ended in bitter disappointment when the Toronto Blue Jays knocked them out of the American League Division Series. The setback quickly grew worse as injury updates rolled in.
Gerrit Cole’s return from Tommy John surgery until several weeks after Opening Day. Carlos Rodon underwent elbow surgery in October to remove loose bodies and smooth a bone spur. He has been shut down from throwing for eight weeks and is expected to miss the start of the 2026 campaign. Clarke Schmidt, recovering from his own Tommy John procedure, will not be available until the second half of the season.
“When you build in the ramp up and throwing program into getting him ready to be a starting pitcher, probably delays him potentially a couple weeks to start the season,” manager Aaron Boone said of Rodon’s recovery timeline.
That leaves Max Fried as the lone proven starter on the Yankees’ roster. Behind him, young arms like Cam Schlittler, Will Warren, and Luis Gil will be asked to take on larger roles than initially planned.
Who is Tatsuya Imai?
Tatsuya Imai has developed into one of Japan’s most dominant pitchers. The 27-year-old ace of the Saitama Seibu Lions finished the 2025 NPB season with a 1.92 ERA across 163.2 innings, striking out 178 hitters while issuing only 45 walks. His performance earned him a second straight All-Star selection and national attention.
Standing 5-foot-11 and weighing 154 pounds, Imai doesn’t have the imposing frame of a typical power pitcher. But he compensates with elite mechanics and explosive stuff.
ESPN’s Jeff Passan called Imai “the hardest-throwing starter in Japan.” His fastball averages 95 mph and can touch 99, which he pairs with a sharp slider, a fading changeup, a splitter, and a developing sinker.
“The already-existing pitch mix that Tatsuya Imai has is intriguing, sporting a four-seamer that generates better-than-average vertical movement from his 5-foot-0 release height,” wrote Ryan Garcia of Empire Sports Media.
Imai’s command has also improved dramatically. His walk rate dropped from roughly 16 percent earlier in his career to just seven percent in 2025 — a sign of both maturity and improved control.
How Imai compares to recent Japanese imports
The Yankees watched from afar as the Los Angeles Dodgers built a championship dynasty powered by Japanese stars. Yoshinobu Yamamoto won World Series MVP honors in 2025 after throwing a complete-game masterpiece in Game 7. Roki Sasaki, another Japanese sensation, dominated as a rookie after signing with Los Angeles.
NPB Career Comparison: Tatsuya Imai vs. Yoshinobu Yamamoto vs. Roki Sasaki (Through 2025)
| Category | Tatsuya Imai (Seibu Lions) | Yoshinobu Yamamoto (Orix Buffaloes / now Dodgers) | Roki Sasaki (Chiba Lotte Marines / now Dodgers) |
| Age (as of 2025) | 27 | 27 | 23 |
| NPB Seasons | 8 (2017–2025) | 7 (2017–2023) | 5 (2020–2024) |
| Career Games (Starts) | 153 (150) | 172 (171) | 81 (80) |
| Career Record (W–L) | 70–56 | 75–30 | 41–16 |
| Career ERA | 3.15 | 1.82 | 1.96 |
| Career Innings Pitched | 963.2 | 897.0 | 539.1 |
| Career Strikeouts (K) | 964 | 922 | 727 |
| Career Walks (BB) | 418 | 207 | 105 |
| Career WHIP | 1.16 | 0.92 | 0.89 |
| Strikeout Rate (K%) | 25.0% | 27.1% | 30.5% |
| Walk Rate (BB%) | 10.8% | 5.3% | 5.8% |
| Opponent Batting Average (AVG) | .220 | .194 | .175 |
| Complete Games / Shutouts | 14 / 6 | 18 / 8 | 8 / 5 |
| All-Star Selections | 2 | 5 | 3 |
| Major Awards | 2025 NPB ERA Leader | 3× Sawamura Award, 2× Pacific League MVP, 5× All-NPB Team | 2023 WBC standout, All-NPB Team (2024) |
| Average Fastball Velocity | 95 mph (Max 99) | 94 mph (Max 97) | 99 mph (Max 102) |
| Pitch Arsenal | 4-Seam Fastball, Slider, Changeup, Splitter, Sinker | 4-Seam Fastball, Cutter, Splitter, Curveball, Slider | 4-Seam Fastball, Forkball, Slider, Cutter, Curveball |
| Pitching Style | Power-command hybrid with improved control | Command-dominant ace with elite consistency | Power pitcher with overpowering velocity and late break |
| Durability | High innings load; durable | Exceptionally consistent | Managed workload due to age and velocity strain |
| Posting Status | Expected Winter 2025 | Posted 2023 (Joined Dodgers) | Posted 2024 (Joined Dodgers) |
David Mackinnon, who played in NPB in 2023, has faced Imai, Yamamoto, and Sasaki. His take was revealing.
“[Imai was] the hardest person to hit with the best stuff,” Mackinnon said when comparing the three pitchers.
He combines mid-90s velocity, command improvements, and endurance — exactly what New York’s rotation lacks entering 2026.
Imai’s ability to mix five distinct pitches makes him a strong fit for MLB rotations in need of immediate innings and adaptability — a major asset for the Yankees.
The numbers back that up. In 2025, Imai led Nippon Professional Baseball in strikeout rate (27.8%), opponent batting average (.172), and WHIP (0.892). Over eight professional seasons, he holds a 3.15 career ERA across 963.2 innings — proof of consistency and durability.
Yamamoto and Sasaki both transitioned successfully to MLB, showing that smaller Japanese pitchers can thrive with elite command and mental toughness. Imai’s track record suggests he could do the same.
Perfect timing for Yankees and Imai
The Yankees have repeatedly missed out on elite Japanese talent in recent years. They failed to land both Yamamoto and Sasaki while the Dodgers turned those signings into championships. Now, with the Seibu Lions expected to post Imai this offseason, New York has another opportunity to tap into the Japanese market.
“Japan’s top starter this past season, he could be posted and provide the Yankees with both a remedy to their rotation issues and a way to get back into the Japanese market,” Garcia wrote.
The timing aligns perfectly. The Yankees need starting pitching help but cannot afford to overpay aging free agents or trade away top prospects. They already have more than $90 million committed annually to Cole, Rodon, and Fried over the next three years.
Imai, entering his prime at 27, provides a cost-effective solution. Early estimates suggest he could command between $80 million and $200 million depending on competition. Even at the higher end, he would represent better value than domestic free agents like Zac Gallen or Dylan Cease, both of whom are expected to demand major trade packages or long-term contracts.
What Imai brings to the Bronx
The Yankees’ pitching development staff has a proven track record of refining pitchers’ arsenals. Under their guidance, both Max Fried and Rodon improved their sinkers significantly. In 2025, the Yankees ranked fifth in MLB in sinker effectiveness (Stuff+), and they have remained among the league’s best since 2020.
Imai’s natural arm action and pronation make him a perfect candidate to add a power sinker to his repertoire. Combining that with his fastball and splitter could make him a nightmare for opposing hitters in Yankee Stadium.
“The Yankees could slap a solid sinker and cutter on Tatsuya Imai and lean into his craftiness even more, making him a three-fastball pitcher with a deep bag of secondaries to mix in as well,” Garcia explained.
Durability is another major selling point. Imai threw 163.2 innings in 2025, including five complete games and three shutouts. That kind of workload would give New York the stability it desperately lacks while waiting for its injured starters to return.
Unlike a raw prospect, Imai is ready to contribute immediately. His mechanics and mound presence are polished enough to handle MLB competition without a lengthy adjustment period.
Proving ground for future signings
Signing Imai would mean more to the Yankees than simply filling a rotation hole. It would signal to future Japanese players that New York is serious about investing in international talent again.
The success of Yamamoto and Sasaki with Los Angeles has given Japanese pitchers confidence that MLB is attainable and rewarding. The Yankees, long viewed as a global baseball brand, need to re-establish themselves as a destination for international stars.
West Coast teams like the Dodgers and Giants will have natural advantages in geography and familiarity, but the Yankees offer something unique: global visibility, financial muscle, and a chance to pitch under the brightest lights in the sport.
The Yankees don’t have enough pitching. And Imai’s arrival could provide the perfect solution.
If Cashman moves decisively, Imai could stabilize a rotation in crisis, reestablish New York’s presence in the Japanese market, and perhaps lay the groundwork for the team’s long-awaited return to World Series contention.
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