There were a lot of changes in the goalkeeper department at Chelsea last summer, and there could be more to come. Chelsea brought in Robert Sanchez from Brighton & Hove Albion and allowed Kepa Arrizabalaga to join Real Madrid on loan. They also signed Djordje Petrovic from New England Revolution, and he has been the Blues’ No.1 since the injury Sanchez picked up in December. The Spaniard has since returned to action, starting in the 4-2 FA Cup quarter-final win against Leicester City, a decision talkSPORT pundit Andy Jacobs could not understand. Despite buying two new goalkeepers last summer, …