Chelsea have sold a lot of players over the past season or so, and one of them in particular has now spoken out about why he decided to leave. The Blues have been known to make a number of mistakes in years past when it comes to letting players leave the club who go on to become superstars. Mohamed Salah and Kevin De Bruyne both ended up leaving Chelsea during Jose Mourinho’s reign, and he revealed that they left simply because they wanted to. Enzo Maresca could yet have let another star slip through the cracks this summer as over 20 players headed out either on loan or permanently. Interestin…