The majority of Chelsea players are already firmly back in action for pre-season at Cobham under the new manager. Enzo Maresca has had an opportunity to take a look at a large amount of his squad ahead of next season, and this has included a number of those who missed most of last campaign due to injuries. One of their returnees, Wesley Fofana, has been spotted with strapping on his knee already, arising some fears that he may not yet be fully over his injury woes. READ MORE: Chelsea will take no risks with ‘special’ player during pre-seasonPlayers who represented their country in the deep sta…