Roberto Mancini's squad is bulging at the seams and with the announcement of his 25-man squad on the horizon, the Italian boss is determined to trim the playing personnel.
A Soccernet source revealed: "From first team squad players, through to the juniors and the kids, the club have so many players on their books, it is incredible.
"The club are devoting a lot of their time contacting clubs to place players on loan for a year, or to sell them."
But many of City players are in no rush to leave Eastlands, having landed lucrative deals since the club's Abu Dhabi owners first took control.
Another leading global agent told Soccernet: "The big earners are not willing to go. It is tough to get them out of the club.
"Its a case of having to pay them off, offer them hugs sums, millions, just to leave. Or they are going to be forced to subsidise the wages of players they sell.
"There is no doubt that City are going to lose a lot of money, on a lot of players. If it carries on like this, then in four or five years, Manchester City would have blown £1 billion on players."
City, though, show no signs of halting their spending spree. It seems that while they continue talks on recruiting a big name striker, they have caused a bottleneck in the transfer market.
Inter Milan have made their move for Javier Mascherano, but Liverpool have slapped a £25 million price tag on his head, forcing the Nerazzurri to wait until they finalise a deal with City for Mario Balotelli before swooping for the Argentina World Cup captain.
Although it has been suggested that the Balotelli deal is a sure thing, Mancini has hedged his bets by keeping tabs on Edin Dzeko of Wolfsburg.