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Toronto Blue Jays announce major signing with 6'5 starting pitcher in latest move


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Bobby Ohr
August 13, 2025  (7:09 PM)
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Blue Jays announce they have signed international free agent Moon Seo-Jun #bluejays #mlb
Photo credit: Sportschosun

The Toronto Blue Jays announced this afternoon that they have agreed to terms with international free agent pitcher Moon-Seo Jun.

Since the MLB draft, the Blue Jays have not been too focus on signings as they agreed to terms with all of their drafted players then turned their focus towards the trade deadline.

Blue Jays sign international free agent Moon Seo-Jun

According to reports, the Blue Jays have agreed to a signing bonus valued at over $1 million for Korean pitcher Moon Seo-Jun and they will be finalizing the deal in the coming days.
Breaking: The Toronto Blue Jays are expected to sign 18-year-old Korean pitching prospect Moon Seo-jun for a bonus of over $1 million during the current 2024-2025 international signing period, sources tell Beisbol FR.

Much more:
The 18 year old stands at 6'5 and 210lbs with a fastball already hitting 93.8 MPH as he is one of the top prospects in Korea and is expected to go first overall in the KBO draft this year.
Some video on Blue Jays IFA Signee Moon Seo-Jun who was set to become a top pick in the KBO draft. 18 years old. Lots of physical projection (6'5/210 LBS) and a FB that's already reached 93.8 MPH.
Moon Seo-jun's fastball hit 93.8 MPH earlier this summer
There is not a ton of stats available just yet online regarding Seo-Jun but the bit fans have been loving the few clicks that have been circulating since the news broke.
The Blue Jays seem to have locked in their ace for the future with this major signing.
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Toronto Blue Jays announce major signing with 6'5 starting pitcher in latest move

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