Real Sociedad have confirmed the signing of Alexander Isak from Borussia Dortmund.
Isak joined Dortmund in 2017 but struggled to really establish himself in the first and last term was sent out on loan to Willem II.
The teenager impressed in the Netherlands with 13 goals and now it’s been revealed that the forward has joined the Erreala.
— Real Sociedad (@RealSociedadEN) June 12, 2019
Isak signs on a five-year deal with the Spanish side paying €10m.