Chelsea have had no problems spending big on teenagers under owners Todd Boehly and Behdad Eghbali. Chelsea could end up paying just over £50m in total for Estevao Willian after agreeing a deal with Palmeiras to sign the winger. It is a lot of money for a teenager, but the Blues may not be done there amid links with another rising star. Estevao will officially join Chelsea next year. Chelsea’s transfer battle for Estevao was a crazy one, according to Fabrizio Romano, who has promised to reveal more details about it in the future. READ MORE: Fabrizio Romano shares what Chelsea have been told ab…