Two-Way Wonder Seong-Jun Kim | MLB News

A 19-year-old two-way phenom from South Korea, Seong-Jun Kim, is rewriting the script for young MLB prospects. Signed by the Rangers for $1.2M in 2025, he’s already dominating at Single-A Hickory—striking out top prospects in five pitches and posting a lights-out ERA in the AZL. With a 95 mph fastball, nasty slider, splitter, and curve, Kim’s rare dual-threat potential could make him a future game-changer—if he keeps this momentum rolling.

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