Song Seong-mun (San Diego Padres) received harsh criticism from local fans before even making his major league debut. Can Song Seong-mun turn all the question marks attached to him into exclamation points?
Fansided's Padres coverage, Friars on Base, recently asked the club about the real motive for acquiring Song Seong-mun, saying, "Song Seong-mun's shocking projected 2026 performance raises big questions for the Padres."
FanGraphs' projection system Steamer projected Song Seong-mun's 2026 season at 86 games, 323 plate appearances, a .248 batting average, .305 on-base percentage, .368 slugging percentage, 91 wRC+, and 0.8 WAR.
Friars on Base opened its piece sarcastically, saying, "This projection doesn't blatantly tear Song Seong-mun down. It views him not as a core piece but as a serviceable member of the team. You can think of him as a 'glue player' who helps keep the roster from completely falling apart. If this is San Diego's expectation for Song Seong-mun, that in itself isn't a problem."
But if Steamer's projection becomes reality, that's a problem. The outlet criticized, "San Diego wouldn't have needed to go all the way to Korea to find a 90-game roster backup. Yet they gave Song Seong-mun four years and $15 million (about 2.21 billion won), and looking at the bonus and the actual salary structure, you can see there is some clear plan for him."
The outlet continued, "Song Seong-mun hit .315 with a .387 on-base percentage, .530 slugging, 26 home runs, 25 steals and a .917 OPS across 144 games in the KBO last year. That's by no means a light résumé, so one might question whether Steamer undersold him. But Steamer simply predicted as Steamer does. It factored in the uncertainty of leaving the KBO to enter the major leagues and conservatively projected his playing time."
In the end, as former player Kim Ha-seong did, Song Seong-mun must erase local projections, the media and fans' question marks with his ability. Choosing San Diego, which has a solid infield, makes survival difficult, but Kim Ha-seong earned a Gold Glove with stellar defense under adverse conditions. If Song Seong-mun is reduced to a bench member as Steamer predicts, the modest $15 million contract could be judged an overpay.
The outlet noted, "If Song Seong-mun is truly an 86-game player in reality, the Padres essentially spent $15 million for insurance. It raises questions about the intent behind investing that sum in him. Conversely, if Song Seong-mun plays about 120 to 140 games, Steamer's projection will be completely off." It added, "The Padres didn't bring Song Seong-mun in to make him interesting. They brought him to make him important. Can Song Seong-mun be an everyday starter?"
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