The new Chelsea manager is no doubt keen to look at all of his squad ahead of the upcoming pre-season and subsequent Premier League campaign. Enzo Maresca has reportedly spent some of his holiday watching footage from last season, where he will have become accustomed with a number of the first team players. What he will have noticed though is a number of key players who were unable to string any gametime together as a result of an injury-hit season. READ MORE: When Chelsea players are going to return to pre-season under Enzo MarescaClub captain Reece James and his deputy Ben Chilwell were hard…