Scotland, Wales and Northern Ireland are in League B and can only qualify for the World Cup via the European play-offs.
Scotland lead Group B4 on 11 points, level with Belgium on head-to-head record but holding a four-goal cushion in terms of goal difference.
On Tuesday, Scotland will play Israel, who they beat 6-0 on Friday, in the final round of fixtures.
To top the group, Scotland must at least match Belgium’s result against Luxembourg and not have their goal difference advantage overhauled.
A positive outcome for Scotland would ensure they are seeded for the play-offs and, in theory, get an easier draw – and a potential future game against England.
Should they finish as runners-up in the group, Scotland will be drawn against a seeded team from League A or League B in the play-offs.
In Group B2, Northern Ireland cannot catch Turkey in second place after a 2-1 defeat in Istanbul on Friday so will finish third in Group B2.
As a League B third-placed team, they are unseeded and will be drawn against a seeded team from League A or League B.
Wales are second in Group B1, behind Czech Republic after a 1-1 draw in Montenegro on Friday, and must beat the Czechs in their final match to secure top spot and a seeding for the play-off draw.
A draw or defeat for Wales would leave them in second spot and paired with a seeded team from League A or League B.
Finally, the Republic of Ireland completed a key stage of their attempt to earn automatic qualification by beating the Netherlands 3-2 to leapfrog them and go second in Group A2.
Victory against current group leaders France on Tuesday would guarantee top spot and a place in Brazil.