Career
Opoku began his career with Corners Babies, and joined Accra Hearts of Oak South Carolina in 2008. After a short stint there he signed with Asante Kotoko. He played his debut match for Asante Kotoko in the CAF Champions League against Étoile du Sahel.
He is a utility player who plays as a centre back and a defensive midfielder.
He is nicknamed "Hello Kwaku"
He played with the Ghana national under-17 football team at the 2007 Fédération internationale de football association U-17 World Cup in South of Korea.