Questions relating to the former City captain, who faces disciplinary proceedings for alleged breaches of contract, were once again off limits at Mancini's weekly news conference.
Reporters were warned not to question Mancini on Tevez but he was still asked whether he had a future at the club.
"I don't know, I don't know," said the Italian.
"Sorry, but I think it is better to talk about [Saturday's Premier League opponents] Aston Villa."
The club issued a statement on Wednesday saying it had reached a stage in its investigation of the events to conclude that Tevez had a case to answer of alleged breaches of contract and that there would be a hearing "shortly".
"Now I think it is important we focus on the next week, we have three important games," he said.
Tevez's fellow Argentina forward Sergio Aguero is doubtful for the Villa game with a groin injury but should be fit for Villarreal, while striker Mario Balotelli has recovered from a back problem and is available.
