By far one of the most disappointing elements of Chelsea’s season so far has been the form of Diego Costa. A lethal goalscorer last term, the Spain international has looked a shadow of the man who tore apart defences on a routine basis - Mourinho now believes he knows why. As tweeted by Chelsea’s official Twitter account after the loss to Leicester City last night, the Special One admitted Costa’s lack of confidence has meant that his movements are just not the same. Now, should Mourinho drop him? Let us know in the comments box provided. Meanwhile, the Blues boss also opened up on the injury that caused Eden Hazard to hobble off during last night’s defeat. Mourinho said it must be a serious injury as the player himself had asked to be withdrawn. Not good news, we’re sure.