It was already in the 22nd minute that Newcastle were forced to make a substitution. The Swedish national team star stepped off injured and Harvey Barnes came in instead.
A few minutes earlier, Isak had gone on a hit and he hit his hip.
The striker has suffered injury problems earlier in the autumn, when he has, among other things, broken a toe.
He has four goals and two assists in ten Premier League games this season.
The match is in progress – the text is updated.