After 1985-86 season, Seiko left the league and Wu also retired from professional football.
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After that, he joined Seiko, where he helped the club to win more than 40 tropies in 14 years, including the 1983–84 championship and Senior Viceroy Cup.
Wong Fei-hung | Hung | Hung (TV series) | Hung Hom Station | Tran Anh Hung | Sun Hung Kai Properties | Hung Shui Kiu | Eva Kwok | Trần Hưng Đạo | Trần Anh Hùng | Hung Hom | Florence Kwok | The American's Creed hung in Butler University | Roger Kwok | Phước Hưng | Phu My Hung Corporation | Ma Chih-hung | Ly Thai Hung | Leung Kwok-hung | Kwan Sai Hung | Kuei Chih-Hung | Kit Hung | Ip Kwok-him | Hung Shui Kiu Station | Hung Shing | Hung Hom (KCR) | Hưng Hóa | Hưng Hà District | Hung Chin-chang | Hòa Hưng, Bà Rịa–Vũng Tàu |