Slovakia ended Scotland's nine-match unbeaten when a first-half goal from Jan Gregus gave them a 1-0 win in their Nations League match on Sunday.
Michal Duris struck an extra-time winner as Slovakia profited from the few chances they had to stun Northern Ireland.
Hungary, Iceland, Scotland, Northern Ireland, Serbia, Slovakia, North Macedonia, and Georgia all advanced to the Euro 2020 playoff finals.
The Czech Republic claimed a 3-1 away win over neighbouring Slovakia in their UEFA Nations League opener.
Croatia qualified for Euro 2020 after second-half goals from Nikola Vlasic, Bruno Petkovic and Ivan Perisic inspired a comeback 3-1 home win.
Hungary and Slovakia will play their next Euro 2020 qualifiers behind closed doors after both national federations were sanctioned.
World Cup runners-up Croatia stayed on course to qualify for Euro 2020 after a dominant display gave them a 4-0 Group E win in Slovakia.
Daniel James scored his first international goal on his competitive debut to give Wales a 1-0 home win over Slovakia in Group E.
Jozef Adamec, the youngest member of the Czechoslovakia team beaten 3-1 by Brazil in the final of the 1962 World Cup in Chile, has died.
Sweden striker John Guidetti scored his first international goal in more than two years as they drew 1-1 with Slovakia.
Substitute Patrik Schick gave the Czech Republic a 2-1 win over neighbouring Slovakia and earned them their first Nations League points.
Futsal goalkeeper Christoffer Haagh swapped the five-a-side court for a full-size pitch to help a callow Denmark side save face in a 3-0 loss.
Denmark's futsal players only accepted a call to play for the national football team in order to save their own sport, their coach has told ESPN FC.
Denmark will field a team of lower-league and futsal players for a friendly in Slovakia after failing to resolve a pay dispute with their top stars.
Morocco's Ayoub Kaabi and Younes Belhanda scored in a 10-minute spell to give the World Cup-bound side a convincing 2-1 win over Slovakia.
Scotland's 2018 World Cup hopes remain alive after a sensational late winner in the 1-0 victory over 10-man Slovakia at Hampden Park.
Marcus Rashford turned from zero to hero for England as he followed up a mistake with a goal and an assist as his side beat Slovakia.
Milan Skriniar's meteoric rise has the 22-year-old centre-back, recently signed by Inter Milan, set to become the heartbeat of the Slovakia defence.
Slovakia manager Jan Kozak has labelled England's emerging crop of youngsters as "the future of football'' ahead of the teams' World Cup qualifier.
Spain rallied with two late goals to salvage a 2-2 draw with England in a friendly at Wembley on Tuesday.
Slovakia scored three times in the first half as they cruised to a 4-0 home victory over Lithuania in World Cup Qualifying European Group F.