Blackstenius connected to the national team squad in Italy in the evening, after having fallen ill and therefore stayed at home in London longer than intended.
Now the forward, who decided the Champions League final in Arsenal's favor on Saturday, seems healthy again. Blackstenius was present when the national team stepped out with the rest of the team for Wednesday's training outside Parma, ahead of Friday's Nations League meeting with Italy.
Instead, another Arsenal Swede has fallen ill. Amanda Ilestedt, who will be leaving the club after this season, is skipping Wednesday's training after exhibiting symptoms.
Following Friday's match, the national team will fly to Stockholm. Waiting there is the Nations League conclusion against Denmark at Strawberry arena on Tuesday.