That would be the reason MSI haven't got rid of Corinthians yet. Both Tevez and Mascherano are on loan from Corinthians to West Ham. The players are only in the shop window at West Ham, if a club comes in with an offer for the players then West Ham have the opportunity to match the offer if they wish to hold on to them.
Allegedly he was having an affair with Carl Fletcher's wife and when it ended he sold Fletcher to Crystal Palace. Heard a few other bits too but can't remember the exact details.