After a disciplined first-half performance from the visitors, Jonas Wind’s 47th-minute strike put the Danes ahead and Northern Ireland thought they had secured a late point through debutant Callum Marshall, but after a lengthy VAR review, it was ruled out for offside in the build-up.
Here are the best Northern Ireland fan photos from Copenhagen. The gallery will be updated as more images become available.
1. Group shot
Northern Ireland fans in Copenhagen before the match Photo: Jonathan Porter / Press Eye
2. Cheering on Northern Ireland
Northern Ireland fans Lee Simpson and his son Roman in Copenhagen before the match Photo: Jonathan Porter / Press Eye
3. Fans in Copenhagen
Fans Ben McElhinny, Andy Boyce and Chris Porter in Copenhagen before the match Photo: Jonathan Porter / Press Eye
4. Getting ready for the match
Northern Ireland fans in Copenhagen before the match Photo: Jonathan Porter / Press Eye