The Argentina forward submitted a formal transfer request at the weekend, claiming his relationship with key executives at the club had broken down "beyond repair" and his representative Kia Joorabchian today accused the club of reneging on promises made to the player.
Tevez did not travel with the rest of the City squad for the Europa League group match against Juventus in Turin on Thursday night, and Mancini said: "I haven't spoken to him yet. He is our player and I hope he continues to play for us and score for us. I will speak with him on Friday."
Mancini said Tevez's transfer request had come as a surprise to him, at a time when the club find themselves in third place in the Barclays Premier League.
"I am disappointed because we are in a good moment and in a good position in the table and our focus must be on this," the Italian continued.
"I want to speak to him. Carlos has three-and-a-half years left on his contract."
Asked whether he thought he could change the player's mind, Mancini said: "I don't know, I don't know. Carlos is our player and will stay with us.
"It is important we speak. We have important games coming up against Juventus and against Everton on Monday and lots of (other) important games this month.
"I speak with him a lot - we spoke only last week."
Mancini joked: "I hope he continues to be unhappy if he is scoring goals like this."
Source: PA
Source: PA