It is believed, or better said, rumoured that Real Madrid has made a 45M€ offer for Silva to which the English Club has refused. Silva finishes contract with City in 2014 & refusing to renew makes it now the right moment for City to reap in the money as next season his selling figure will "drastically" drop. This type of pressure is often used by the player to at least open some kind of negotiation which was initially non-existent.
Funny thing is that Silva days back voiced his desire to re-sign another 5 years for City. What has changed? Possibly nothing & we as in England are just looking for news where there is none. Or not? Stay tuned, we still have a very long hot summer ahead.