It takes a brave soul to switch from red to blue in Manchester at the best of times, but of those that have crossed the divide, no one has done so with the same level of drama as Carlos Tevez.
The Argentine's arrival in England set the foundations for multiple controversies, signed by West Ham United under a breach of third-party ownership rules in which the rights of the player were partially held by agent Kia Joorabchian's company, Media Sports Investment (MSI).
The Hammers were fined £5.5million but managed to avoid a points deduction before escaping relegation by the skin of their teeth. In hindsight, that should have been a red flag for those at Manchester United: where Tevez goes, drama follows.
