3. Diego Costa is the real deal
When Costa joined the Blues over the summer, many were concerned that he would be another expensive flop like Fernando Torres or Andrei Shevchenko, but just four games into the new campaign and he has already gone a long way to stamping out those comparisons with an impressive haul of seven goals from their opening fixtures. A hat trick against Swansea on Saturday seemed to suggest that he is not here for a holiday and is ready to continue that epic form from Atletico to help re-establish Chelsea as a dominant force in the English top flight once again.