Ronald Koeman is a Dutch retired footballer who has been manager of the Netherlands national team since 2018 He is the younger brother of his former international teammate Erwin Koeman and the son of former Dutch international Martin Koeman Koeman was capable of playing both as a defender and as a midfielder he frequently played as a sweeper although he was equally known for his goalscoring longrange shooting and accuracy from free kicks and penalties Born in Zaandam Koeman began his career at FC Groningen before transferring to the Netherlands most successful club Ajax where he won the national Eredivise title in 198485 He then joined Ajaxs rivals PSV winning three consecutive Eredivisie titles 198687 198788 and 198889 and the European Cup in 1988 Ronald Koeman is one of five European players to ever win a Treble with their club and a cup with their national team in the same year The other four players are his teammates Hans van Breukelen Berry van Aerle Gerald Vanenburg and Wim Kieft In 1989 Koeman moved to Barcelona and became part of Johan Cruyffs Dream Team helping the club win La Liga four years in a row between 1991 and 1994 and the European Cup where he scored the winning goal of the final against Sampdoria in 1992 At international level Koeman was one of the stars of the Netherlands national team alongside Marco van Basten Ruud Gullit Frank Rijkaard and Dennis Bergkamp During his career with the Netherlands Koeman won UEFA Euro 1988 and played at the UEFA Euro 1992 1990 and 1994 FIFA World Cups captaining the team at the latter As a head coach Koeman has won three Eredivisie titles twice with Ajax 200102 and 200304 and once with PSV 200607 He is the only individual to have both played for and managed the Big Three of Dutch football Ajax PSV and Feyenoord Abroad he had spells in Portugal with Benfica and Spain with Valencia coaching Los Che to victory in the 200708 Copa del Rey and managed Premier League clubs Southampton and Everton in the 2010s