Manchester City have played their part in some of the biggest transfers in the history of the Premier League and world football. Ever since Sheik Mansour bought the club in 2008, Manchester City have been one of the richest football clubs in the world, capable of providing their managers with a near-unlimited transfer budget. Though City also have a fantastic academy system that is producing incredible talent, heavy spending in the transfer market is often required to enhance the first-team squad. Millions have been spent on Pep Guardiola’s team and he has won a lot of trophies in return, with…