Celtic assistant manager Johan Mjallby will leave his role at the end of the current season.
The former Hoops defender has been Neil Lennon's right-hand man for the past four years but will look to other opportunities this summer at the completion of the current Scottish Premiership campaign.
The 43-year old Swede was grateful to the Glasgow giants for allowing him to be so heavily involved with such a successful outfit with whom he has won six Scottish titles - three as a player.
"I have enormous affection for Celtic Football Club and it is with sadness that the time to leave has arrived. However, I now leave to seek some different opportunities," he told the club's official website.
"The club has been part of my life for almost two decades and I have been dedicated to them in every way, first of all as a player and then in management.
"As a player, it was a time when we achieved great success and I had the privilege to work with football people and players who were first-class and real quality. We had some great moments and memories I will always cherish.
"It was an honour to return to the club and work in management with Neil, (first team coach) Garry (Parker) and the players, and we have worked hard over the last few years to once again bring the club success.
"I hope Neil, the staff and the players can deliver many more trophies and titles for our fans in the future. I would like to sincerely thank all our supporters for all they have given me and everything they have given to the club. They are special fans, the best I have ever seen in football."
