Chelsea boss Carlo Ancelotti admits he is following the progress of Atletico Madrid star Sergio Aguero.

Chelsea have been constantly linked with the Argentinian but Ancelotti maintained there is no pressing need to buy him and, with Atlético reportedly demanding at least £50m for the player, warned that Chelsea will not be held to ransom.

"I like him but that's it. Yes, it is important for Chelsea, like all big clubs, to monitor all good young players, but we have a very good squad already. Nobody can grab us by the throat."