Tevez has responded quickly to City's confirmation that they had turned down a transfer request from the Argentinian striker and hinted they would hold him to a contract that is not due to expire until 2014.
However, Tevez's mind is made up, as he outlined in a statement on Sunday evening.
"I can confirm I have handed a transfer request to the chairman of Manchester City Football Club," said the 26-year-old. "Now I need to clear my head and think because this is an important part of my career.
"My feelings have not changed and it is regrettable that we have reached this situation.
"But it is something I have felt for some time and have spent many hours thinking this through."