With the 2012 transfer window shut and the Premier League season well and truly underway, we can start to take a closer look at the official squads of each EPL club.
One of the main players in the transfer window, Chelsea are looking to improve on last season's triumphs in the FA Cup and Champions League by regaining the title of Premier League champions. In order to do this, it will be important that every player is performing at the top of his game, every game.
But in particular, there are a few players who will be key in securing that coveted trophy.
Here, then, are the five players who I believe to be the key in Chelsea's 2012/13 Premier League campaign.