Manchester United manager José Mourinho suggested on Friday that Antonio Valencia is currently the best right-back in world football.It was certainly a bold claim of a player who started life as a winger before gravitating back into defence. "I think he is the best right-back you can have," Mourinho said of the 31-year-old Ecuadorian. "There is no better right-back in football. It is a privilege for us to have such a good player and such a good man." While it's no secret where Mourinho's allegiances lie,