It is not known how serious the injury is. The national team doctor Houman Ebrahimi will soon come up with an update.
The 35-year-old Sembrant made a comeback earlier this year after a cruciate ligament injury. She missed the Olympics when she rehabilitated her knee.
The Swedish national team squad has this week gathered for a European Championship preparatory camp in Båstad and Wednesday’s training was the first where all 23 players participated.
The European Football Championship in England starts on July 6 and Sweden plays its first group game match three days later, against the Netherlands.