It is my big concern that Flavio recovers and is available to play against Mali,” Jose told reporters in Angola.
“He, together with Stelvio (also injured), are important to our starting lineup because we don’t have any stars in our team and need the key elements of our collective.”
The Shabab forward sustained an injury during the Palancas Negras pre-tournament game with Gambia on Sunday.
Hosts Angola compete in Group A along with Mali, Malawi and World Cup finalists Algeria.