Oliver Dovin signed an extended contract at hammarby on 17th of march, contract extends to summer(June?) 2026.
https://www.hammarbyfotboll.se/aktuellt/nyheter/oliver-dovin-forlanger-kontraktet
In game his name is Viktor Đukanović, he's available in my game, did you start with the Real world or your world start dates?
If you chose real world he might be in your future transfers.