Jong-hyun Ko is a 19-year-old defender for Suwon Samsung Bluewings with a market value of €125,000, indicating his status as a promising professional in the K League 1. Born on April 11, 2006, Ko is part of the defensive contingent at a club with high expectations. His career is advancing within Suwon's structure, where he competes for minutes in a demanding league. Key moments include his senior team debut and any matches where he helped shore up the Bluewings' defense during a challenging period. Helping Suwon achieve stability and climb the league table would be a significant team contribution. As a young defender, his development is tracked through clean sheets and defensive solidity rather than individual awards at this stage. Ko's playing style is likely based on strong tackling and positional sense. He is seen as a defensive asset for the future, aiming to cement his place at the heart of Suwon's backline.