Rubuta ci gaba don wannan sakin layi - A watan Yunin 2017, Duelund na ɗaya daga cikin 'yan shekaru 19 da aka ambata a cikin' yan wasan Denmark na gasar zakarun Turai na UEFA na Under-21
a ƙasar Poland. Ya bayyana sau biyu a gasar, gami da farawa a cikin rashin nasara 3<unk>0 ga masu nasara a Jamus, kafin a fitar da Denmark a lokacin rukuni.