Kammala jumla mai zuwa: An kira Knak zuwa kungiyar 'yan wasan Switzerland ta U20 don gasar zakarun duniya ta 2020 a Jamhuriyar Czech. An sake sanya shi a cikin tawagar don
Buga na 2021 a Edmonton, Kanada. An nada Knak a matsayin kyaftin din kungiyar a wannan fitowar. Ya zira kwallaye 1 a wasanni 4 yayin da Switzerland ta kasa kaiwa 1/4 na karshe a karon farko cikin shekaru 5.