Southampton boss Ronald Koeman is keen to sign Manchester United wonderkid Demetri Mitchell on loan. The 17-year-old left-winger, whose contract expires in 2016, has already attracted a clutch of interest from English and European clubs after a string of explosive performances. United boss Louis van Gaal has already been given rave reviews about the youngster who scored four goals in United's opening game of the 2014 Milk Cup, against Gold Coast Academy, last week.