Northern Ireland have already beaten Luxembourg at home. Paddy McNair and Dan Ballard got the goals in a 2-0 victory at Windsor Park back in September. O'Neill is without several players for this game, however, with Ciaron Brown's suspension adding to his defensive problems. McNair, Eoin Toal and Jamal Lewis are already out.

Thankfully (for my sake) explaining how it all works hasn't been left to me, over to you Andy Gray... Luxembourg have won just one of their six previous meetings with Northern Ireland in all competitions (D1 L4), beating them 3-2 in a FIFA World Cup ...

Currently sitting atop Group C3 with 10 points, Northern Ireland will secure promotion if they avoid defeat at Stade de Luxembourg. Alternatively, they will advance if Bulgaria fail to beat Belarus in the group’s other fixture. This pivotal night promises tension and drama.