Shamrock Rovers have confirmed that underage coach Damien Duff has left the Dublin club to take up a role with Scottish giants Celtic.
Duff, who finished his career as a player with Rovers, took up his first coaching job with the Hoops in 2017, helping them set up their Under 15 National League team.
The former Chelsea and Newcastle United player will now take charge of Celtic's Under-20 side, replacing Shaun Maloney, who has joined the Belgian national team set-up.
Duff will also work alongside Celtic's head of performance Tommy McIntyre.
Rovers confirmed Duff's departure in a statement and paid tribute to the former Ireland international.
"Damien’s daily presence at our Roadstone training base has helped us achieve our aim to raise standards right across the board," the statement read.
"His selflessness , commitment, professionalism and unwavering desire to help improve the young players that he has worked with during his time coaching here at Shamrock Rovers has been incredible.
"Today Damien leaves us to take up his new challenge at Celtic. We would like to take this opportunity to thank Damien for all he has given us in his time at the club.
"Celtic are not just getting an Irish legend ,they are getting a young coach of exceptional potential with an unbelievable work ethic and brilliant football mind. But most of all, they are getting a guy of great integrity. Damien, thank you, everyone involved at Shamrock Rovers F.C. wishes you well."