Tatsuya Imai, the standout right-hander from Japan’s Saitama Seibu Lions, has emerged as one of MLB’s most intriguing offseason targets. After posting a 1.92 ERA over 163⅔ innings with 178 strikeouts in 2025, Imai officially entered the MLB posting system, opening the door for major-league suitors.
Unlike many Japanese stars who join established MLB powerhouses, Imai has expressed a desire to compete against the Dodgers rather than join them. “Winning against a team like the Dodgers and becoming a World Champion would be the most valuable thing in my life,” he said, signaling a clear preference for a rival NL West team.

The San Francisco Giants have been frequently mentioned as a likely suitor. With both the resources and motivation to challenge Los Angeles in the division, acquiring Imai would strengthen their rotation and make them a more serious contender. However, concerns about his potential contract size and long-term durability may temper immediate offers, leaving the competition for his services wide open.
Imai’s arsenal — a mid-90s fastball reaching 99 mph, complemented by a slider, splitter, and sinker — makes him a potential front-line starter capable of dominating in high-stakes matchups. His decision to avoid joining teams with existing Japanese stars, including the Dodgers, underscores his desire to craft his own path in MLB.

For the NL West, landing Imai could shift the balance of power. For the Dodgers, it’s a reminder that talent alone doesn’t guarantee allegiance; some players are motivated by the challenge of beating the league’s best. As MLB teams prepare their bids, all eyes will be on Imai, whose next move could redefine the rivalry in the West.
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