Premier League giant Manchester City are all set to make $470mn for Lionel Messi in January' if uncertainty continues over superstar's Barcelona contract extension.

The current points table leaders are prepared to take advantage of Messi's contract stand-off at Barcelona by lodging a $470million bid for his services in January, according to reports in Spain.

Barcelona announced earlier this summer that Messi had signed a new contract at the Nou Camp, extending his stay until 2021.

However Spanish outlet AS report that the deal remains in doubt despite Barcelona's announcement and there are still a number of loose ends to tie up.

As it stands, Messi's Barcelona deal is due to run out this summer meaning that clubs are free to negotiate with him as early as January.

The Madrid-based newspaper reported that City are ready to pounce amid the uncertainty with a $470mn offer for Messi in the next transfer window.

DailyMail citing its sources close to City have reportedly held 'serious conversations with the player's inner circle' over a potential move, which would see Messi reunite with his former manager Pep Guardiola.

Barcelona president Josep Maria Bartomeu told reporters earlier this summer that Messi's extension was confirmed, saying: 'Everything is signed. There is no need to worry'.