Devine Roosevelt Teah started in Hammarby’s 6-1 away win over third tier side IFK Stocksund in the Swedish Cup.
It was the first start and fifth appearance for the 18-year-old Liberian midfielder.
Teah’s journey began at Hammarby with an eight minutes performance against Gothenburg in July.
The former Nimba FC midfielder sealed a permanent deal with the Swedish topflight in April.
He has a contract up to 2027.