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The story
On the 30th, Rakuten announced it has acquired catcher Takuya Kai (33) from the Giants in a cash trade. Kai had only just joined the Giants as a free agent from SoftBank in the 2024 offseason, signing a reported five-year, ¥1.5 billion deal — which makes a mid-contract trade like this a rare occurrence. This season he started behind the plate in just 3 of his 13 appearances, trailing behind Ohshima and Kishida on the depth chart. On 5ch, posters debated everything from which team is actually covering the rest of his contract to what exactly Rakuten stands to gain from the move.
What people said
Kai exercised his domestic free-agent rights in the 2024 offseason while with SoftBank and moved to the Giants on a reported five-year, ¥1.5 billion contract. In his first season there, 2025, he missed time after fracturing his right middle finger in August, but still made his presence felt on both sides of the ball, batting .260 with 4 home runs and 20 RBIs in 68 games. This season, though, he's started behind the plate in just 3 of his 13 appearances, with playing time going mainly to Ohshima and team captain Kishida instead.
This is the second year of his five-year deal, which had run through 2029 with the Giants — making this a mid-contract trade with very few precedents.
Re: #16
They cut 3 guys outright, and Ohta might be leaving too
Can't believe they actually went through with it
Re: #19
The Giants are a player-first organization
so if a guy's not getting playing time, they'll trade him out for his own good
Re: #19
It's basically an 'unagi' switcheroo (slang for a bait-and-switch deal)
Re: #51
Way too early to make Watanabe the sole starter
Re: #52
Even if Rakuten makes the Japan Series next year, is Kai even gonna see the field?
Re: #63
Ohta's leaving via free agency and they already cut Ishihara, so without a move like this they couldn't even field a farm-team game
Thought this was a joke but it's actually real
https://sports.yahoo.co.jp/contents/19803
Breaking news just dropped on Sports Navi
Re: #71
The contract carries over exactly as it is
That original five-year deal transfers with him
Re: #72
The only real issue is the salary clearly doesn't match the role — they don't want him as the main guy,
but as a rotating/platoon catcher he's totally fine
but if Rakuten's footing the bill, isn't that just dumb?
Re: #76
Hint: it's a cash trade
Re: #86
Wait, isn't the Giants the side paying the cash here?
Re: #86
Even if Rakuten only pays the Giants some small trade fee, they're still inheriting Kai's remaining 3 years at ¥300 million a year — that's a massive loss lol
Could NPB just ban multi-year deals or something?
Re: #78
What would be the point of banning them?
Re: #78
It's not a tragedy at all
The player gets paid big and is happy, and the club wanted him enough to pay that much
Also, if the Giants treat a guy who chose them as a free agent like this, nobody's gonna want to sign there anymore
Re: #80
Vissel Kobe was throwing cash at washed-up veterans too — they genuinely just have money to burn
Re: #83
It's a bidding war between Hiroshima, Hanshin, and Chunichi
Re: #83
Apparently he himself wants to go to Hiroshima
Re: #94
Honestly it only makes sense he went FA because the Giants came calling
Re: #102
They get to stay cozy with the Yomiuri Group
Re: #102
It's them clearing out Kakizawa
Re: #104
Guess that just shows how much they're counting on him
Getting his SoftBank-era data/insight is huge
Guess this is what happens once Abe's not around anymore
Re: #109
Well, back then Ohshima had been moved to a different position anyway
There's no way it benefits Rakuten to inherit all ¥300 million
Re: #125
Developing Watanabe, plus the SoftBank data
Background and Key Debates
Multi-year contracts signed after exercising free-agent rights aren’t unusual in NPB, but it’s extremely rare for a player to get traded to another team in the middle of one of those deals. Kai had only just moved from SoftBank to the Giants as a free agent in the 2024 offseason, and this trade carries that entire contract over to Rakuten intact. What split opinion in the thread was how the remaining salary would be divided between the Giants and Rakuten — since this is officially a ‘cash trade,’ Rakuten presumably has to put up some money of its own, but the exact split hadn’t been disclosed at the time of reporting, so even the comments never got past speculation. As for Rakuten’s motive, posters floated several theories — mentoring rookie catcher Watanabe, tapping into his SoftBank-era data, strengthening ties with the Yomiuri Group — but it’s worth noting none of these are official explanations from the club, just fan speculation. Kai’s playing time had dropped off sharply after his free-agent move largely because of how deep the Giants’ catching corps is, and how this trade plays out for his career will depend entirely on how Rakuten chooses to use him going forward.
*This article is compiled and summarized from the 5ch (Nandemo Jikkyo G) thread: [Rakuten] Shock cash trade lands Giants’ Takuya Kai — unusual mid-contract move brings in an experienced catcher

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