Career
His name, Ikechukwu, means "Power of God". He started his career at Jasper United in Nigeria. He was signed by University College Sampdoria in summer 2002.
After played one season in Genoa, A.C. (before Christ) Milan signed him on summer 2003 in joint-ownership bid for €1 million, and saw Luca Antonini move to opposite direction in joint-ownership deal (for €2 million), and sent him on loan to Pisa and Chiasso.
He scored 28 goals in 44 games in two season in Swiss second division, which saw Sampdoria recall him in summer 2007. He made his Serie A debut on November 10, 2007 against Empoli F.C.
In June 2008, Sampdoria bought back Kalu from Milan for €250,000 and co-currently signed Paolo Sammarco outright for another €2.5 million. Kalu then sold to the Swiss side Air Corps Bellinzona for €400,000.