 Originally playing as a defensive midfielder, he converted to playing as a central defender at the age of 15 after impressing there as cover for a teammate who had missed a match due to being stuck in traffic.Despite impressing for PSG's youth and B teams, he only appeared in two first team games, in his final year at the club at the age of 21.Dissatisfied with his lack of appearances, Bamba asked to be sent out on loan to gain experience but was denied by manager, Vahid Halilhodžić, causing Bamba to reject PSG's offer of a new contract and subsequently leave the club.