Everton FC have completed the signing of Ronald Koeman as its new manager ahead of the 2016/17 season, as confirmed by the club.
Koeman replaces Roberto Martinez, who was sacked last month, at the helm at Goodison Park.
Sky Sport say Everton have paid Saints around £5m compensation for the services of the former Netherlands international defender.
The club in an official statement said: “Everton is pleased to confirm the appointment of Ronald Koeman as manager on a three-year contract to June 2019.”
The Dutchman in each of the past two seasons has led Southampton to seventh and sixth-place finishes in the Premier League and qualification for the UEFA Europa League.
A European Cup winner as a player at Barcelona and winner of the European Championship with the Netherlands, the gaffer has won eight trophies as a manager including three Dutch Eredivisie titles, the KNVB (Dutch) Cup and the Copa Del Rey in Spain.