Ronald Koeman, a Dutch retired footballer, has been the manager of the Netherlands national team since 2018. Born in Zaandam, he began his career at FC Groningen before transferring to Ajax, where he won the national Eredivise title in 1984-85. He then joined Ajax's rivals PSV, winning three consecutive Eredivisie titles and the European Cup in 1988.
Koeman is one of five European players to have won 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, he moved to Barcelona and became part of Johan Cruyff's "Dream Team", helping the club win La Liga four years in a row between 1991 and 1994, and the European Cup in 1992.
As a player for the Netherlands national team, Koeman was one of the stars of the team, alongside Marco van Basten, Ruud Gullit, Frank Rijkaard, and Dennis Bergkamp. During his career with the Netherlands, he 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 and once with PSV. He is the only individual to have both played for and managed the "Big Three" of Dutch football: Ajax, PSV, and Feyenoord.
