Original: Nwankwo Christian Nwosu Kanu , OON ( born 1 August 1976 in Owerri , Nigeria ) , or simply Kanu , is a Nigerian professional footballer who plays as a striker for Football League Championship club Portsmouth .
Simplified: Nwankwo Kanu ( born 1 August 1976 ) is a Nigerian football player . He plays for Portsmouth and Nigeria national team .