By Laura McGuire Sports Direct owner Frasers Group has appointed a director to its board who is in a relationship with founder Mike Ashley’s youngest daughter. Frasers welcomed David Al-Mudallal, the chief operating officer, to its board last month. The 31-year old got his first job in retail when he joined Frasers seven years ago. A report in the Sunday Times said the senior figure is also in a relationship with Ashley’s daughter Matilda, aged 27. It means two of the 11 board members at the FTSE 100 company are romantically involved with Ashley’s daughters. Frasers chief executive, Micheal Mu…