Chelsea have signed several young players this summer, as they have done in recent transfer windows. Since being taken over by Todd Boehly and Clearlake Capital, there has been a huge focus on bringing in youngsters with potential. This summer, for example, Chelsea have bought Marc Guiu, Omari Kellyman and Renato Veiga. They have also agreed a deal with Palmeiras to sign Estevao Willian, who is still only 17 years of age. Estevao cannot officially join the Blues until he turns 18, but he is a prime example of the profile of player they have been targeting. So is Guiu, and Chelsea fans are keen…