http://soccernet.espn.go.com/columns/story?id=852600&sec=transfers&root=transfers&cc=5739
Tevez doesn't care for the ambience at City, dislikes the way the club is run, and is not afraid to voice those concerns, which will swiftly make his tenure at the club untenable.
To listen to my source explain the thought-process of Tevez's momentous decision left me with no doubt about the strength of feeling of the player's desire to quit the club. And the reasons are far too complex to pin it down to one reason.
Here is the explanation: "Let's make it clear that at the end of the summer Carlos Tevez wanted to leave the club, and he had made that clear to the senior management team at the club. But the player's representatives and the board at City together convinced him to give it a go and see if there was a means of making him change his mind and stay.
"They told him, 'you are our warrior, the most important player at the club, and we want you to stay a long time'. However, Tevez was made a lot of promises, and they have not been forthcoming, and there has been a strong disagreement with the senior management of the club.
"There was talk of a new contract, but to offer him more money, it would have to come with an extension to that contract. Negotiations went on, they made an offer, there was a counter offer, and then it went cold.
"But the club made a very generous offer of a bonus for this season, just for the one season. It was a huge number. But Carlos said no. He did not want to take the money. It was almost like hush money, to prevent him talking publicly about the problems behind the scenes, and he felt he could not do that.
"The club wanted to continue to re-negotiate his contract but he turned it down, and told the club more recently that he could no longer carry on."
The reasons are varied. My source continued: "His family are in Argentina, a three-year-old and a newly-born. He has had his problems with the senior management and also the manager Robert Mancini, although his relationship with his manager is not irreparable.
"He is in a foreign county and not happy at his work. So, to commit to the next five years he has to make a lot of personal sacrifice, but if you are not happy where you work, if you're miserable at work, and you are missing your family at the same time, it becomes more understandable why he wants to leave.
"He has now put in a transfer request, the club have turned it down, and he is now making a statement, and will have to think very carefully about what he does next. Would he play again for the club? Yes, if they want him to, why not?
"Would he move to Italy or Spain? Yes, he would, he is just not happy where he is. He is also a strong character and he resents the insinuation that he was manipulated into this decision by his advisors. This is his decision alone. He is insulted by the allegation that others manipulated him into it. This is his personal decision.
"Would he walk away from the game, if he is forced to stay at City? Yes, he might. It cannot be ruled out."