Full Breakdown
Sung-mun Song Enters MLB Posting System
11/22/2025, 4:30:08 PM
Overview of Sung-mun Song's Career
Sung-mun Song, a 29-year-old infielder from South Korea, is entering Major League Baseball's posting system, making him available for teams to sign from November 22 to December 21. Song has had a successful career in the Korea Baseball Organization (KBO), primarily with the Kiwoom Heroes and Nexen, where he has accumulated a .284 batting average, 80 home runs, and 454 RBIs over nine seasons. In the 2024 season, he achieved a career-high .315 batting average, along with 26 home runs and 90 RBIs.
Posting System Details
Under MLB's posting agreement with the KBO League, the posting fee for players like Song is structured as follows: 20% of the first $25 million of a major league contract, 17.5% of the next $25 million, and 15% for any amount exceeding $50 million. Additionally, a supplemental fee of 15% applies to any earned bonuses, salary escalators, and exercised options.
Potential Teams Interested in Signing Song
Several MLB teams are reportedly interested in signing Song, particularly those in need of a third baseman or left-handed bat. The Los Angeles Angels are looking for a left-handed hitter to balance their right-heavy lineup, while the Houston Astros may consider him if they can accommodate him at second base. Other teams potentially in the mix include the Oakland Athletics, Seattle Mariners, Chicago White Sox, Pittsburgh Pirates, Miami Marlins, Texas Rangers, Arizona Diamondbacks, Detroit Tigers, and Kansas City Royals.
Scouting Report and Player Evaluation
Song's recent performance has drawn attention, but scouts have mixed evaluations of his potential in MLB. Eric Longenhagen of FanGraphs graded him as a 45, indicating he may be a low-end regular or platoon player. While he has shown improvement in his offensive production, concerns remain about his ability to handle premium pitching. His chase rate increased to around 30% last year, raising questions about his hit tool and overall consistency. Despite these concerns, his defensive skills and baserunning ability may provide him with a better chance of success compared to other Pacific Rim hitters transitioning to MLB.
Criticism and Concerns
Critics of Song's potential impact in MLB point to his late-blooming career and the risk associated with his aggressive swing, which may struggle against higher velocity pitches. Some evaluators suggest that a batting average closer to .230 is more realistic than a repeat of his recent .330 performance in the KBO.
Verbatim Quotes
- “With his defense, baserunning, and devotion to accessing his plus raw pop, Song seems better insulated from busting than some more accomplished and toolsier Pacific Rim hitters coming stateside, even if a .230 batting average feels far more likely than .330 reprise.” — Eric Longenhagen, FanGraphs
- “The Angels need a third baseman and are looking for a left-handed bat to balance a righty-heavy lineup.” — Anthony Franco, MLB Trade Rumors
As Sung-mun Song prepares to enter the MLB posting system, his performance in the KBO and the interest from various teams will be closely monitored as he seeks to make his mark in Major League Baseball.
