European champions Italy missed out on automatic qualification for the 2022 World Cup after they were held to a 0-0 draw by Northern Ireland.
Steven Zuber and Christian Fassnacht both scored as Switzerland defeated 10-man Northern Ireland 2-0 in their World Cup Group C qualifier.
Giovanni Reyna and Christian Pulisic scored as the U.S. beat Northern Ireland in a friendly to earn a first victory on European soil since 2015.
Italy made a comfortable start to the 2022 World Cup qualifying campaign by beating Northern Ireland 2-0 in Group C on Thursday.
British Prime Minister Boris Johnson says it is the "right time" for the United Kingdom and Ireland to launch a bid to host the 2030 World Cup.
The United States men's national team will play a friendly against Northern Ireland in Belfast on March 28.
Northern Ireland have been relegated from Nations League B after Romania were awarded a 3-0 win over Norway for their cancelled 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.
Norway beat Northern Ireland 5-1 in their Nations League match on Monday with Borussia Dortmund striker Erling Haaland leading the charge.
Serge Gnabry scored a hat trick as qualified Germany came from a goal down to crush Northern Ireland 6-1 in their final Euro 2020 qualifier.
Netherlands booked their place at Euro 2020 with a 0-0 draw against Northern Ireland, whose hopes automatic qualification slipped away.
Memphis Depay scored twice and Luuk de Jong was also on target as the Netherlands came back with 10 minutes left to beat Northern Ireland.
Germany beat hosts Northern Ireland 2-0 on Monday to get their Euro 2020 qualification on track as they bounced back from a loss to Netherlands.
Austria forward Valentino Lazaro curled in a stoppage-time winner to give them a 2-1 win away to Northern Ireland.
Roma forward Edin Dzeko scored his 300th and 301st goals as Bosnia beat Northern Ireland 2-0 in their UEFA Nations League clash.
The Republic of Ireland will join England, Scotland, Wales and Northern Ireland in exploring a potential bid for the 2030 World Cup.
Haris Duljevic opened the scoring for the visitors before Elvis Saric took advantage of Craig Cathcart's poor header to double the advantage.
Northern Ireland midfielder Chris Brunt has announced his retirement from international football, the Irish Football Association said on Tuesday.