Astros pitcher Tatsuya Imai blames American lifestyle for arm fatigue

Houston Astros pitcher Tatsuya Imai, sidelined with arm fatigue, said tests showed no significant injury and pointed to challenges adjusting to life in the United States. The Japanese right-hander, in his first MLB season, noted differences in travel and eating habits compared to Japan. He expects to build arm strength and return soon.

Tatsuya Imai was placed on the injured list Monday with arm fatigue after walking four of seven batters in his most recent start. The 27-year-old right-hander told reporters Tuesday, including those from The Athletic, that medical tests returned positive results with no major damage. Speaking through interpreter Shio Enomoto, Imai said he will focus on building arm strength before rejoining the team. He attributed the issue partly to adapting to the 'American lifestyle,' citing differences like longer travel and eating dinner at the stadium rather than the hotel after games, as was customary in Japan with the Seibu Lions. Imai signed a three-year, $54 million contract with the Astros this offseason after posting a 3.07 ERA over nine seasons in Japan, including 1.92 ERA in 24 starts last year. The Astros, who snapped an eight-game losing streak with a 7-6 win over the Colorado Rockies on Tuesday, sit at 7-11 in the AL West basement. They are also missing ace Hunter Brown (shoulder), starter Cristian Javier (shoulder), shortstop Jeremy Peña (hamstring), closer Josh Hader (biceps) and center fielder Jake Meyers (oblique). This marks uncharted territory for Houston in directly signing and assimilating a player from Japan.

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Houston Astros introduce Japanese pitcher Tatsuya Imai at Daikin Park press conference.
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Astros introduce Japanese signing Tatsuya Imai at Houston press conference

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Five days after agreeing to a three-year, $54 million contract with Japanese right-hander Tatsuya Imai, the Houston Astros formally introduced the 27-year-old at Daikin Park on January 5, 2026. The three-time NPB All-Star expressed excitement about chasing a World Series, while team executives highlighted expanded Asian scouting efforts.

Houston Astros starter Tatsuya Imai, on the 15-day injured list with right arm fatigue, played catch on Thursday at Daikin Park but said he does not know when he will return to the pitcher's mound. Imaging on his shoulder and arm came back clean, with the team now focusing on building arm strength. Imai has cited challenges adjusting to the major leagues and American lifestyle.

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Houston Astros rookie right-hander Tatsuya Imai traveled back to Houston on Saturday after experiencing right arm fatigue following Friday's 9-6 loss to the Seattle Mariners. Imai recorded just one out in the game, struggling with command. No injury signs appeared during or immediately after the outing.

The Saitama Seibu Lions announced on Monday that they will post right-handed pitcher Tatsuya Imai for MLB teams this offseason. The 27-year-old standout enters a 45-day negotiation window after a dominant 2025 season in Nippon Professional Baseball. Imai's availability adds intrigue to a pitching-thin free-agent market.

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As their posting windows near closure, Japanese free agents Tatsuya Imai and Kazuma Okamoto are holding in-person meetings with MLB clubs in Los Angeles this week. The 27-year-old right-hander Imai faces a Friday deadline, while 29-year-old infielder Okamoto has until Sunday. Both players, coming off strong NPB seasons, have drawn interest from multiple teams seeking to bolster their rosters.

Houston Astros left-handed reliever Bennett Sousa strained his left oblique during last Thursday's Grapefruit League outing against the Nationals and will begin the 2026 season on the injured list. Manager Joe Espada said Sousa will be sidelined until the pain subsides. The injury creates opportunities for other relievers in the bullpen.

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Japanese slugger Munetaka Murakami faces a December 22 deadline to sign with an MLB club after being posted by the Yakult Swallows. His market remains unclear, with limited buzz around potential suitors despite praise for his power potential. If no deal is reached, he would return to Japan for the 2026 season.

 

 

 

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