Chelsea announce ninth summer signing as ‘dream’ transfer confirmed  London Evening StandardPep Chavarria: The late bloomer left-back joining Chelsea  BBCChelsea bolster full-back options with Pep Chavarría arrival from Rayo Vallecano  ESPNPep Chavarria to Chelsea transfer: Rayo Vallecano left-back is a late bloomer but could his mentality help Xabi Alonso?  Sky SportsChelsea signs Chavarria as replacement left back for Cucurella  The Washington Post