Chelsea sign Atalanta's Ahanor and loan him to Palace

What happened
Chelsea signed Atalanta defender Honest Ahanor in a deal worth a reported £40 million ($54 million) on Tuesday, but the teenager will spend this season on loan at Crystal Palace.Meanwhile, Chelsea striker Marc Guiu has joined RB Leipzig on a five-year deal for £14.5 million, bringing to an end a two-year stay at Stamford Bridge.
Summary assembled by rule from the sources below