Chelsea may have to move fast to sign one player this summer because of European champions Real Madrid. They have been busy already, recently confirming the arrival of Kiernan Dewsbury-Hall from Leicester City. The 25-year-old joins Chelsea to bolster their midfield options. The Blues have also signed Tosin Adarabioyo from Fulham. That is another name for Enzo Maresca to consider when assembling his backline. It is also not impossible that another centre-back arrives at the club before the transfer window closes. Premier League star attracting interest from Real Madrid and ChelseaThe defender …