The Spanish football club writes that Isak has been examined and that it has been established that he sprained his right ankle.
Real Sociedad, on the other hand, does not provide a forecast for when Alexander Isak may be back in action.
"He has started treatment with physiotherapy.
Return to normal training will take place gradually ", the club writes on its website.
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Alexander Isak injured himself against Celta Vigo.
Photo: C More.