Ex – Dutch defender who began managing Ajax this year 2010 after portion as an helper for the Dutch nationwide team for just two years. He started his professional profession with Ajax in 1988. He produced 112 performances for holland national group in his 14-season international profession. He includes a sibling called Ronald de Boer. He retired through the Netherlands’ national group one period before Robin Vanpersie became a member of the squad in 2005.