Sir Alex Ferguson's 'noisy neighbours' have the financial power to put his proposed ?15million offer in the shade.
Ferguson wants to buy the 19-year-old this summer as a replacement for Paul Scholes.
In demand: Jack Rodwell in action for Everton
But City's Roberto Mancini is also an admirer of England Under-21 midfielder Rodwell, and enquired last summer.
Financial pressures could force Everton manager David Moyes to sell, despite having extended his prize asset's contract until 2015. Man United to resume chase for Everton starlet Rodwell with ?15m bidChelsea 1 Everton 1 AET (Everton win on penalties): Cole and Anelka bottle it in shoot-out as Blues crash outAll the latest Manchester United news, features and opinionAll the latest Manchester City news, features and opinionAll the latest Everton news, features and opinion
Explore more:People: Paul Scholes, Alex Ferguson, Roberto Mancini, David Moyes Places: United Kingdom