The Daily Mail says Etuhu is facing a dressing down from Keane after he was arrested and questioned by police following a fight in a Norwich nightclub.
The incident happened after Etuhu had played in Sunderland's 2-0 defeat to Chelsea on Saturday. The former Norwich player was later released on police bail. A man in his 30s lost his front tooth in the scuffle. Another man, believed to be a relation of Etuhu, was also arrested and bailed. Etuhu, 25, is due to answer bail in January, which could affect his chances of playing for Nigeria in the African Nations Cup.