Real Sociedad have confirmed the signing of Swedish international Alexander Isak from Borussia Dortmund.
The 19-year old had been linked with a move to the Anoeta since the end of the season, after netting 13 league goals in 16 appearances at the back end of 2018-19 campaign, on loan at Dutch side Willem II.
Isak came off the bench for a cameo appearance, as Sweden lost 3-0 to Spain at the Santiago Bernabeu on June 10, and the teenager remained in Madrid to finalise the details of his move to the Baque Country.
La Real have not confirmed details of the fee they have paid for Isak, although it is believed to be in the region of €10m, alongside a five-year contract, for the highly rated attacker.
Imanol Alguacil's side are reported to have beaten off competition from Anderlecht and other Bundesliga sides to secure Isak's signature.
The club have already confirmed the free transfer of former Athletic Bilbao goal keeper Alex Remiro, with Girona's Portu also set to sign at the Anoeta in the coming days.