One former Premier League manager could become an option for Chelsea if they decide to sack Mauricio Pochettino. Chelsea could look at Julen Lopetegui should they get rid of Mauricio Pochettino, a report from GiveMeSport has claimed. Lopetegui has been out of a job since leaving Wolverhampton Wanderers, where he worked with former Chelsea striker Diego Costa. The 57-year-old also managed Costa when he was Spain boss and is a huge fan of the player. “He has a big heart,” Lopetegui was quoted as saying about the striker by The Independent last season. Lopetegui has also coached at Real Madrid, S…