Paris Saint-Germain’s Brazil international defender Marquinhos has disclosed that his side must work hard if they are to defeat Senegal and Nigeria in their friendlies in October.

The Selecao of Brazil held their first training session on Monday afternoon at the Singapore National Stadium, Kallang, ahead f the friendly with the African oppositions.

Marquinhos says, Nigeria and Senegal are the two best teams on from the continent and they are aware of the threat they posed.