A number of eyebrows were no doubt raised when Chelsea officially announced who would be representing them on this summer’s pre-season tour. Enzo Maresca’s side have now flown to the United States to take on a plethora of top teams to prepare for the new season. Some big names were not found on the list. Trevoh Chalobah was not selected, with his future still up in the air. READ MORE: Five Chelsea academy players who could feature in Enzo Maresca’s first pre-seasonInstead, it looks as if there is a focus on giving some of the younger talent at the club an opportunity to make their mark and pot…