What happened: Samsung Lions outfielder Ja-Wook Koo partnered with agent Jaron Long of Mako Corp. to represent him in contract discussions across North America, per Feinsand. The left-handed batter offers defensive experience across both corner outfield spots and first base.

Why it matters: Major league clubs evaluating international talent covet experienced contact hitters who can handle multiple positions without requiring long-term payroll commitments. A transition would test how Koo's offensive production in South Korea translates against major league pitching.

What to watch: MLB front offices will monitor Koo's availability as international posting windows and offseason negotiations open for 2027.