According to the International Football Federation Fifa's regulations, only competitive matches at the A-national team level can "lock" players to a nation.
17-year-old Frøya Dorsin, daughter of the former Swedish national team defender Mikael Dorsin, is currently selected for Norway's F19 national team for matches in Portuguese Algarve.
Now I played for Norway last, and that's where I have my focus going forward. But you never know how it may look in the future, she said in an interview with Aftonbladet last year.
To Norwegian TV2, she said in May that it's Norway that applies, but the channel reports that the Swedish Football Association is pulling the talent, who recently made her A-team debut for French top club PSG.
Sweden's national team captain Peter Gerhardsson is naturally aware of Frøya Dorsin, but doesn't want to interfere with the 17-year-old's national team decision.
There are contacts, of course, but I haven't had any direct contact. We'll see where it ends up. If she wants to play for Sweden, we'll probably find out. But initially, the decision lies with the player. Number one is that she wants to play for Sweden, says Gerhardsson.