Sung-mun Song is officially heading to Major League Baseball. On Friday, December 13, 2025, the San Diego Padres signed Sung-mun Song as a free agent,.

The San Diego Padres have reportedly filled another hole in their lineup. Francys Romero of BeisbolFR reported that the Padres have signed Korean Baseball Organization infielder Sung Mun Song.

The Padres needed starting pitching this winter, and in the end, they didn’t have to look very far to find it. Right-hander Michael King has agreed to a three-year deal to return to San Diego, sources told MLB.