He made his Serie A debut on 10 November 2007 against Empoli F.C.Ni osu kefa 2008, Sampdoria gbe Kalu pada lati Milan fun EUR250,000 ati ni akoko yii tewo bowe pelu Paolo Sammarco fun EUR2.5 million.. 
Ó kópa òṣèré fún ìgbà àkọ́kọ́ nínu fíìmù  ogun àjàyè ní ọdún 1985 , láti igbana, ó ti kópa nínu ọ̀pọ̀lọpọ̀ eré.Àwọn Ìtọ́kasí.. 