In 1988, while playing for ACB Lagos, Nwanu was declared unwanted by coach Patrick Ekeji. Nwanu went on to play in lower divisions in Belgium before he was picked up by Jupiler League side K.S.K. Beveren. After three seasons he was bought by R.S.C. Anderlecht, who won the league twice during his stay. Nwanu played very few matches; he retired after an unsuccessful spell in RKC Waalwijk.
References
^ ab"Chidi Nwanu". National Football Teams. Benjamin Strack-Zimmermann. Retrieved 1 June 2021.