Tevez failed to report for training this month during the international break and was then photographed returning to Argentina, prompting the club to instruct their lawyers to take action.
It was the latest twist in an ongoing saga between Tevez and the club, who currently top the Premier League table.
No way back for Tevez - Mancini
The former Manchester United striker asked for a move away from England last December, stating he wanted to be closer to his family.
Then, in September, Mancini alleged that Tevez refused to come off the substitutes' bench in a Champions League fixture against Bayern Munich, while the player maintained there had been a misunderstanding.
An internal club investigation concluded that Tevez, who joined City in July 2009, was guilty of five breaches of his contract and the player was fined four weeks' wages, reduced to two following intervention from the Professional Footballers' Association.
For the latest updates and reaction to this story, read
Have your say on Twitter via the hashtag #bbcsportsday.
This page is best viewed in an up-to-date web browser with style sheets (CSS) enabled. While you will be able to view the content of this page in your current browser, you will not be able to get the full visual experience. Please consider upgrading your browser software or enabling style sheets (CSS) if you are able to do so.