|Full name||Cheng Yung-jen (鄭勇仁)|
|Date of birth||January 24, 1977|
|Place of birth||Republic of China|
|Playing position||Defender / defensive midfielder|
|* Senior club appearances and goals counted for the domestic league only.
Cheng Yung-jen (Chinese: 鄭勇仁, born January 24, 1977) is a Taiwanese football player who as of 2008 played as a defender for Taiwan Power Company F.C. Most of the time he was the sweeper for the team. He was appointed defensive midfielder for the Chinese Taipei national football team after new manager Toshiaki Imai joined in January 2006.
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