Hart has already accepted his responsibility in Nikola Kalinic's goal.
"I haven't said anything to him about it," Mancini said. "Joe called for the ball and that's why Kolo didn't play it. It was a gift for Blackburn but this hasn't changed my belief in him. Joe is a good goalkeeper but this sort of thing can happen. He's still young and he is strong enough mentally not to let it bother him."