He was allegedly frozen out as punishment for turning up late to training last weekend.
"Mario has a contract until 2013 and in January he will not be moving from Inter," brother and agent Corrado Balotelli told the ANSA news agency.
Arsenal are said to be very interested in Super Mario and prepared to offer £20m for a mid-season switch.
President Massimo Moratti had also stated today that Balotelli was not for sale.
"Certainly Balotelli is not on the market and will not be on the market. There is something to adjust between him, the team and the Coach, his behaviour in particular, but this is owed to his age," Moratti said.