Hidetoshi Nakata
Seol was sponsored by sportswear company Nike and appeared in Nike commercials. In a global Nike advertising campaign in the run-up to the 2002 World Cup in Korea and Japan, he starred in a "Secret Tournament" commercial (branded "Scopion KO") directed by Terry Gilliam, appearing alongside football players such as Thierry Henry, Ronaldo, Edgar Davids, Fabio Cannavaro, Francesco Totti, Ronaldinho, Luís Figo, and Hidetoshi Nakata, with former player Eric Cantona the tournament "referee".