Ronald de Boer, Dutch footballer and manager
Ronaldus de Boer (Dutch pronunciation: [ˈroːnɑldə ˈbuːr]; born 15 May 1970) is a Dutch former professional footballer who played as a midfielder. He played for the Netherlands national team as well as a host of professional clubs in Europe. He is the twin brother of Frank de Boer. The majority of his success as a football player was with Ajax. He works as the Ajax A1 assistant manager.