In Sweden, the measures are not as rigorous as in most of Europe, sports activities have been stopped, but training has not been interrupted.
This was used by Zlatan Ibrahimović, the striker of Milan, who today joined the training of Hammarby, a club of which he recently became one of the owners.
"He expressed his desire and of course he is welcome," said club director Jesper Janson.
Ibrahimović's connection with Hammarby and the purchase of the club's shares caused chaos in his native Malmö last December.
Malmo fans tore down his statue, which was erected in September, for what they said was an unforgivable betrayal.
Malmö and Hammarby are the biggest football rivals.
What will be their reaction when they see Zlatan in Hammarby gear...
Bonus video: