Borussia Dortmund have beaten out Real Madrid to sign Alexander Isak of AIK for €10 million ($10.74 million).

Isak recently became Sweden's youngest ever goalscorer at the age of 17.

Dortmund have gained a reputation for being one of the best clubs in Europe for young players, having signed and given first-team opportunities to players such as Christian Pulisic (18 years old), Ousmane Dembélé (19), Julian Weigl (21), Emre Mor (19) and Raphaël Guerreiro (23).

Borussia Dortmund sporting director, Michael Zorc, said: “Alexander Isak is a hugely-talented striker, who many top clubs in Europe wanted to sign. We are delighted that he has chosen Borussia Dortmund. Both BVB and the player himself are convinced that this transfer has great potential.”

Isak scored 10 league goals in 24 appearances for AIK during the 2017 Swedish season.