Borussia Dortmund have completed the signing of AIK striker Alexander Isak, widely dubbed as ‘the next Zlatan Ibrahimovic’, on a “long-term deal”.

The 17 year old Swedish wonderkid has turned down an offer from Real Madrid to join BVB.

Isak is Sweden national team’s youngest ever goal-scorer and scored 10 goals in 24 league appearances for his previous club.

It is speculated that Borussia Dortmund paid €10m for the youngster.