The answer is thirteen: Chuang Sheng-hsiung, Kuo Yuan-chih, Kuo T'ai-yuan, Liu Ch'iu-nung, Lin Hua-wei, Lin Chung-ch'iu, Yeh Fu-jung, Hsu Cheng-tzung, Yang Chieh-jen, Lin I-tseng, Wu Fu-lien, T'u Hung-ch'in, and Ch'en Ta-feng.
我國旅日球員共有幾個？「二郭一莊」、劉秋農、林華韋、林仲秋、葉福榮、許正宗、陽介仁、林易增、吳復連、涂鴻欽、陳大豐。答案是十三個。