Sydney FC has agreed a fee with Norwegian Champions Rosenborg BK for the transfer of full back Alex Gersbach.
The 18 year old travels to Trondheim on Monday and is expected to undergo a medical on Tuesday before signing for the club for an undisclosed fee.
Sky Blues Head Coach Graham Arnold is disappointed to lose the left back but wishes him well for his future career.
"Alex is very ambitious young man and I would like to thank him for his service to Sydney FC,” said Arnold.
“It is always pleasing to be able to bring through a young player, develop him and see him get a chance in Europe.
“We would have loved to have kept him for another year but it’s a great opportunity for him and I wish him the very best for the future.”
The Sky Blues have cover in the left back department with Rhyan Grant, Ali Abbas and Riley Woodcock still challenging for the position when they face Adelaide United on Friday night.
Gersbach, whose Sydney FC contract was up at the end of the Hyundai A-League season, thanked the club and says he will always remain a Sydney FC fan.
"I'd like to thank everyone at Sydney FC for the opportunity I have had to develop my career and for the experiences I've had playing Hyundai A-League football,” said Gersbach.
"The chances I've been given at Sydney FC have undoubtedly helped me improve as a player and presented me with this wonderful opportunity which lies ahead. I am very grateful for that.
"I've had a great two years with an exceptional group of players and coaching and medical staff, and it has been an honour to represent this club and its fantastic supporters.
"I am hugely excited about the next stage in my career and i wish the club every success in the future. I will always be a Sydney FC supporter at heart."
Gersbach will begin training with his new club in time for the start of the new Norwegian season on March 12 and will be available when Rosenborg BK start qualification for the the UEFA Champions League in July 2016.