PSV Eindhoven have announced the signing of Marco van Ginkel from Chelsea on a season-long loan.
Ajax midfielder Abdelhak Nouri has suffered "severe and permanent brain damage," after collapsing during a preseason friendly game on Saturday.
Arsenal youngster Dan Crowley is set to leave the club to join Dutch side Willem II, sources close to the player have told ESPN FC.
Ajax's preseason friendly against Werder Bremen was abandoned after Abdelhak Nouri required emergency ambulance treatment on the field.
Monaco have signed Netherlands defender Terence Kongolo from Feyenoord on a five-year deal.
Zhang arrives with West Brom looking to strengthen their profile in China, the homeland of the club's controlling shareholder Lai Guochuan.