Simplify the following text for a Grade 7 native English-speaking person.
Original: Kazumichi Takagi ( é `` æ å ' é `` Kazumichi Takagi , born 21 November 1980 in Yasu , Shiga , Japan ) is a Japanese football defender currently playing for J1 team Gamba Osaka .
Simplified: Kazumichi Takagi ( born 21 November 1980 ) is a former Japanese football player . He plays for Gamba Osaka .