The City manager, who is also happy for out-of-favour winger Adam Johnson to move to Everton on a season-long loan deal, had been determined to retain De Jong until the January transfer window due to the groin injury that is set to sideline Gareth Barry until mid-September.
Although De Jong is out of contract at the Etihad Stadium next summer, there have no moves at City to resume talks following the failure to agree terms on a new deal 12 months ago, with Mancini believing that the 27-year-old, an £18m buy from Hamburg in Jan 2009, does not possess the all-round attributes to challenge for a regular first-team position.
Attempts to bolster City’s midfield options with Roma’s Daniele de Rossi have failed, with the Italian club demanding €28m for the Italy international, but Rodwell’s arrival eases the shortage of options during Barry’s absence.
And while City are in no rush to sell De Jong should a suitable offer fail to materialise, Inter’s readiness to pay in the region of £6m for the player is likely to prompt a deal.
With Liverpool keen to raise as much as £30m for the 27-year-old, City are ready to move their sights elsewhere in their search for defensive reinforcements.