United have been trying to get a reduction on the price they agreed, were they to take up the option, at the start of Tevez's two year loan deal at the club.
Related ArticlesLiverpool lose ground in race for TevezReal up stakes for AlonsoFabregas: Arsenal need AlonsoHargreaves could miss season startLet Ronaldo leave Manchester UnitedUnited hope to take 'last chance' to sign TevezHowever, strong interest from several leading clubs mean that that is unlikely, despite United having paid around £10 million already for the loan.
AC Milan and Real Madrid have already tabled packages in the region of £40 million, meaning United will be forced to pay the estimated £32 million transfer fee to retain Tevez.
It now looks likely they will do just that, but the striker's reservations over whether he will be deemed a first team or simply a squad player at Old Trafford mean that meeting the fee would be no guarantee of an agreement.
Tevez is believed to favour staying in the Premier League, though there are no shortage of suitors there either.
Liverpool have long made their interest known, though Rafa Benitez's limited transfer budget means he would be unwilling to match the offers of the continental clubs.
Manchester City, in contrast, have made it known they would be willing to put together whatever financial package was needed and Chelsea have entered the race late on.
Both Roman Abramovich and new manager Carlo Ancelotti are admirers of Tevez and after looking likely to miss out on Kaka they are seriously considering other options now.