The least likely of signings, but there would be no bigger statement of intent from Manchester City than signing Lionel Messi, the g.o.a.t. No, not the farm animal, the greatest of all time. Messi emerged as the best player in the world under Guardiola, and the blue side of Manchester seems to be the likely destination for the Argentinian should he ever choose to leave Barcelona, according to reports. Any deal for Messi would be the biggest in world football, and would eclipse the £85m that Real Madrid spent on Gareth Bale in 2013, but that would be no problem for the riches of Manchester City. Ignoring the other seven players in this list, Messi could single handedly take Manchester City to the level that their owners are craving. A Guardiola and Messi reunion would spell danger for every Premier League club, and not even Leicester City would be able to stop them. Finally we would be able to get the answer to the biggest question in world football, can Messi do it on a cold Tuesday night in Stoke?