FC Seoul has signed veteran goalkeeper Koo Seong-yoon (31), a former national team player who gained extensive experience in Asia's two major professional leagues, the K League and the J League.
With Koo Seong-yoon's signing, FC Seoul has begun a vigorous push toward the 2026 season. FC Seoul will add stability to its goalkeeping, further strengthen its defensive capabilities, and at the same time enhance the overall cohesion of the squad for the coming season.
Wearing the newly deep red uniform, Koo Seong-yoon moved directly from Seoul Jaehyeon High School to the Japanese stage, playing for Cerezo Osaka U-18 in the J League. He was later called up to Cerezo Osaka's first team (call up), which recognized his potential, and he moved to Consadole Sapporo, where he made his professional debut. Since then he has gained experience moving between K League and J League teams including Daegu FC, Gimcheon Sangmu, Kyoto Sanga, and Seoul E-Land, among others.
Koo Seong-yoon is a goalkeeper who has proven his competitiveness at the top professional level over a long period, with steady playing experience in the K League and J League and appearances for the national team. Standing 197 cm tall, his strengths include aerial control, consistent shot-stopping, and composed game management, and he is particularly highly regarded for his ability in building play from the back and organizing the defense as a goalkeeper resource.
Joining FC Seoul for a new challenge, Koo Seong-yoon said, "I am very excited to join FC Seoul, and I want to play with FC Seoul players as soon as possible. This team has the most passionate supporters in the K League, and their constant enthusiastic support for the squad has been truly impressive. Since the last championship was 10 years ago, I will do my best to be a driving force for the team so that the players and fans can become one and certainly win the title in the 2026 season."
[Photo] Provided by FC Seoul
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